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Kim EY, Lee KH, Yun JS, Park YL, Park CH, Jang SY, Ryu JM, Lee SK, Chae BJ, Lee JE, Kim SW, Nam SJ, Yu JH. Impact of residual microcalcifcations on prognosis after neoadjuvant chemotherapy in breast cancer patients. BMC Womens Health 2024; 24:187. [PMID: 38509531 PMCID: PMC10956337 DOI: 10.1186/s12905-024-02973-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 02/14/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND Residual microcalcifications after neoadjuvant chemotherapy (NAC) are challenging for deciding extent of surgery and questionable for impact on prognosis. We investigated changes in the extent and patterns of microcalcifications before and after NAC and correlated them with pathologic response. We also compared prognosis of patients depending on presence of residual microcalcifications after NAC. METHODS A total of 323 patients with invasive breast carcinoma treated with neoadjuvant chemotherapy at Kangbuk Samsung Hospital and Samsung Medical center from March 2015 to September 2018 were included. Patients were divided into four groups according to pathologic response and residual microcalcifications. Non-pCRw/mic group was defined as breast non-pCR with residual microcalcifications. Non-pCRw/o mic group was breast non-pCR without residual microcalcifications. pCRw/mic group was breast pCR with residual microcalcifications. pCRw/o mic group was breast pCR without residual microcalcifications. The first aim of this study is to investigate changes in the extent and patterns of microcalcifications before and after NAC and to correlate them with pathologic response. The second aim is to evaluate oncologic outcomes of residual microcalcifications according to pathologic response after NAC. RESULTS There were no statistical differences in the extent, morphology, and distribution of microcalcifications according to pathologic response and subtype after NAC (all p > 0.05). With a median follow-up time of 71 months, compared to pCRw/o mic group, the hazard ratios (95% confidence intervals) for regional recurrence were 5.190 (1.160-23.190) in non-pCRw/mic group and 5.970 (1.840-19.380) in non-pCRw/o mic group. Compared to pCRw/o mic group, the hazard ratios (95% CI) for distant metastasis were 8.520 (2.130-34.090) in non-pCRw/mic group, 9.120 (2.850-29.200) in non-pCRw/o mic group. Compared to pCRw/o mic, the hazard ratio (95% CI) for distant metastasis in pCRw/mic group was 2.240 (0.230-21.500) without statistical significance (p = 0.486). CONCLUSIONS Regardless of residual microcalcifications, patients who achieved pCR showed favorable long term outcome compared to non-pCR group.
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Affiliation(s)
- Eun Young Kim
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Kwan Ho Lee
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Ji-Sup Yun
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Yong Lai Park
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Chan Heun Park
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung Yoon Jang
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Jai Min Ryu
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Se Kyung Lee
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Byung-Joo Chae
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Jeong Eon Lee
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Seok Won Kim
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Seok Jin Nam
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea
| | - Jong Han Yu
- Division of Breast Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-Ro, Gangnam-Gu, Seoul, 06351, Republic of Korea.
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Hu Y, Mao L, Wang M, Li Z, Li M, Wang C, Ji L, Zeng H, Zhang X. New insights into breast microcalcification for poor prognosis: NACT cohort and bone metastasis evaluation cohort. J Cancer Res Clin Oncol 2023; 149:7285-7297. [PMID: 36917189 DOI: 10.1007/s00432-023-04668-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 02/23/2023] [Indexed: 03/15/2023]
Abstract
OBJECTIVES The study aimed to analyze the poor prognosis of microcalcification in breast cancer (BC), including the pathological complete response (pCR) to neoadjuvant chemotherapy (NACT) and the risk of bone metastases. MATERIALS AND METHODS 313 breast cancer patients received NACT to evaluate pCR and 1182 patients from a multicenter database to assess bone metastases were retrospectively included. Two groups were divided according to the presence or absence of mammography microcalcification. Clinical data, image characteristics, neoadjuvant treatment response, bone involvement, and follow-up information were recorded. The pCR and bone metastases were compared between subgroups using the Mann-Whitney and χ2 tests and logistic regression, respectively. RESULTS Mammographic microcalcification was associated with a lower pCR than uncalcified BC in the NACT cohort (20.6% vs 31.6%, P = 0.029). Univariate and multivariate analysis suggested that calcification was a risk factor for poor NACT response [OR = 1.780, 95%CI (1.065-2.974), P = 0.028], [OR = 2.352, 95%CI (1.186-4.667), P = 0.014]. Microcalcification was more likely to be necrosis on MRI than those without microcalcification (53.0% vs 31.7%, P < 0.001), multivariate analysis indicated that tumor necrosis was also a risk factor for poor NACT response [OR = 2.325, 95%CI (1.100-4.911), P = 0.027]. Age, menopausal status, breast density, mass, molecular, and pathology type were not significantly associated with non-pCR risk assessment. In a multicenter cohort of 1182 patients with pathologically confirmed BC, those with microcalcifications had a higher proportion of bone metastases compared to non-calcified BC (11.6% vs 4.9%, P < 0.001). Univariate and multivariate analysis showed that microcalcification was an independent risk factor for bone metastasis [OR = 2.550, 95%CI (1.620-4.012), P < 0.001], [OR = 2.268(1.263-4.071), P = 0.006)]. Osteolytic bone metastases predominated but there was no statistical difference between the two groups (78.9% vs 60.7%, P = 0.099). Calcified BC was mainly involved in axial bone, but was more likely to involve the whole-body bone than non-calcified BC (33.8% vs 10.7%, P = 0.021). CONCLUSION This study provides important insights into the poor prognosis of microcalcification, not only in terms of poor response to NACT but also the risk factor of bone metastases.
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Affiliation(s)
- Yangling Hu
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Lijuan Mao
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Mengyi Wang
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Zhenqiu Li
- Department of Radiology, The Panyu Fifth Hospital, Guangzhou, China
| | - Meizhi Li
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Chaoyang Wang
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Lin Ji
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Hui Zeng
- Department of Radiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Xiaoling Zhang
- Department of Radiology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
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Hayward JH, Linden OE, Lewin AA, Weinstein SP, Bachorik AE, Balija TM, Kuzmiak CM, Paulis LV, Salkowski LR, Sanford MF, Scheel JR, Sharpe RE, Small W, Ulaner GA, Slanetz PJ. ACR Appropriateness Criteria® Monitoring Response to Neoadjuvant Systemic Therapy for Breast Cancer: 2022 Update. J Am Coll Radiol 2023; 20:S125-S145. [PMID: 37236739 DOI: 10.1016/j.jacr.2023.02.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 02/27/2023] [Indexed: 05/28/2023]
Abstract
Imaging plays a vital role in managing patients undergoing neoadjuvant chemotherapy, as treatment decisions rely heavily on accurate assessment of response to therapy. This document provides evidence-based guidelines for imaging breast cancer before, during, and after initiation of neoadjuvant chemotherapy. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision process support the systematic analysis of the medical literature from peer reviewed journals. Established methodology principles such as Grading of Recommendations Assessment, Development, and Evaluation or GRADE are adapted to evaluate the evidence. The RAND/UCLA Appropriateness Method User Manual provides the methodology to determine the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where peer reviewed literature is lacking or equivocal, experts may be the primary evidentiary source available to formulate a recommendation.
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Affiliation(s)
| | - Olivia E Linden
- Research Author, University of California, San Francisco, San Francisco, California
| | - Alana A Lewin
- Panel Chair, New York University Grossman School of Medicine, New York, New York
| | - Susan P Weinstein
- Panel Vice-Chair, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, Pennsylvania
| | | | - Tara M Balija
- Hackensack University Medical Center, Hackensack, New Jersey; American College of Surgeons
| | - Cherie M Kuzmiak
- University of North Carolina Hospital, Chapel Hill, North Carolina
| | | | - Lonie R Salkowski
- University of Wisconsin School of Medicine & Public Health, Madison, Wisconsin
| | | | | | | | - William Small
- Loyola University Chicago, Stritch School of Medicine, Department of Radiation Oncology, Cardinal Bernardin Cancer Center, Maywood, Illinois
| | - Gary A Ulaner
- Hoag Family Cancer Institute, Newport Beach, California, and University of Southern California, Los Angeles, California; Commission on Nuclear Medicine and Molecular Imaging
| | - Priscilla J Slanetz
- Specialty Chair, Boston University School of Medicine, Boston, Massachusetts
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Azam R, Lim D, Curpen B, Mulligan AM, Hong NL. Correlation of Mammographic Microcalcifications with Final Surgical Pathology After Neoadjuvant Chemotherapy for Breast Cancer. Ann Surg Oncol 2023:10.1245/s10434-023-13367-w. [PMID: 37029866 DOI: 10.1245/s10434-023-13367-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/27/2023] [Indexed: 04/09/2023]
Abstract
INTRODUCTION Imaging guidelines for post-neoadjuvant chemotherapy (NAC) breast cancer patients lack specificity on appropriateness and utility of individual modalities for surgical planning. Microcalcifications confound mammographic interpretation. We examined the correlation between the mammographic extent of microcalcifications present post-NAC, corresponding magnetic resonance imaging (MRI) lesions, and definitive surgical pathology. METHODS In this retrospective cohort study, patients with calcifications on mammography were collected from a database of consecutive breast cancer patients receiving NAC. The primary objective was to determine the correlation between maximum dimension of post-NAC calcifications with surgical pathology (invasive disease, tumor bed, and ductal carcinoma in situ [DCIS]), stratified by tumor receptor subgroup. Secondarily, we examined the correlation of residual disease with MRI mass enhancement (ME) and non-ME (NME). Pearson's correlation coefficient was used to evaluate statistical significance (strong: R2 ≥70%; moderate: R2=25-70%; weak: R2 ≤25%). RESULTS Overall, 186 patients met the inclusion criteria. Mammographic calcifications correlated poorly with invasive disease (R2 = 10.8%), overestimating by 57%. In patients with calcifications on mammography, MRI ME and NME correlated weakly with the maximum dimension of invasive disease and DCIS. In triple-negative breast cancer (TNBC) patients, invasive disease correlated strongly with the maximum dimension of calcifications (R2 = 83%) and moderately with ME (R2 = 37.7%) and NME (R2 = 28.4%). CONCLUSION Overall, current imaging techniques correlate poorly and overestimate final surgical pathology. This poor correlation may lead to uncertainty in the extent of required surgical excision and the exclusion of potential candidates for non-surgical management in ongoing trials. TNBCs would be good candidates for these trials given the stronger observed correlations between pathology and imaging.
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Affiliation(s)
- Riordan Azam
- PGME University of Toronto, Toronto, ON, Canada.
| | - David Lim
- PGME University of Toronto, Toronto, ON, Canada
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Portnow LH, Kochkodan-Self JM, Maduram A, Barrios M, Onken AM, Hong X, Mittendorf EA, Giess CS, Chikarmane SA. Multimodality Imaging Review of HER2-positive Breast Cancer and Response to Neoadjuvant Chemotherapy. Radiographics 2023; 43:e220103. [PMID: 36633970 DOI: 10.1148/rg.220103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Human epidermal growth factor receptor 2 (HER2/neu or ErbB2)-positive breast cancers comprise 15%-20% of all breast cancers. The most common manifestation of HER2-positive breast cancer at mammography or US is an irregular mass with spiculated margins that often contains calcifications; at MRI, HER2-positive breast cancer may appear as a mass or as nonmass enhancement. HER2-positive breast cancers are often of intermediate to high nuclear grade at histopathologic analysis, with increased risk of local recurrence and metastases and poorer overall prognosis. However, treatment with targeted monoclonal antibody therapies such as trastuzumab and pertuzumab provides better local-regional control and leads to improved survival outcome. With neoadjuvant treatments, including monoclonal antibodies, taxanes, and anthracyclines, women are now potentially able to undergo breast conservation therapy and sentinel lymph node biopsy versus mastectomy and axillary lymph node dissection. Thus, the radiologist's role in assessing the extent of local-regional disease and response to neoadjuvant treatment at imaging is important to inform surgical planning and adjuvant treatment. However, assessment of treatment response remains difficult, with the potential for different imaging modalities to result in underestimation or overestimation of disease to varying degrees when compared with surgical pathologic analysis. In particular, the presence of calcifications at mammography is especially difficult to correlate with the results of pathologic analysis after chemotherapy. Breast MRI findings remain the best predictor of pathologic response. The authors review the initial manifestations of HER2-positive tumors, the varied responses to neoadjuvant chemotherapy, and the challenges in assessing residual cancer burden through a multimodality imaging review with pathologic correlation. © RSNA, 2023 Quiz questions for this article are available through the Online Learning Center.
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Affiliation(s)
- Leah H Portnow
- From the Departments of Radiology (L.H.P., J.M.K.S., A.M., M.B., C.S.G., S.A.C.), Pathology (A.M.O., X.H.), and Surgery (E.A.M.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115
| | - Jeanne M Kochkodan-Self
- From the Departments of Radiology (L.H.P., J.M.K.S., A.M., M.B., C.S.G., S.A.C.), Pathology (A.M.O., X.H.), and Surgery (E.A.M.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115
| | - Amy Maduram
- From the Departments of Radiology (L.H.P., J.M.K.S., A.M., M.B., C.S.G., S.A.C.), Pathology (A.M.O., X.H.), and Surgery (E.A.M.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115
| | - Mirelys Barrios
- From the Departments of Radiology (L.H.P., J.M.K.S., A.M., M.B., C.S.G., S.A.C.), Pathology (A.M.O., X.H.), and Surgery (E.A.M.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115
| | - Allison M Onken
- From the Departments of Radiology (L.H.P., J.M.K.S., A.M., M.B., C.S.G., S.A.C.), Pathology (A.M.O., X.H.), and Surgery (E.A.M.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115
| | - Xuefei Hong
- From the Departments of Radiology (L.H.P., J.M.K.S., A.M., M.B., C.S.G., S.A.C.), Pathology (A.M.O., X.H.), and Surgery (E.A.M.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115
| | - Elizabeth A Mittendorf
- From the Departments of Radiology (L.H.P., J.M.K.S., A.M., M.B., C.S.G., S.A.C.), Pathology (A.M.O., X.H.), and Surgery (E.A.M.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115
| | - Catherine S Giess
- From the Departments of Radiology (L.H.P., J.M.K.S., A.M., M.B., C.S.G., S.A.C.), Pathology (A.M.O., X.H.), and Surgery (E.A.M.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115
| | - Sona A Chikarmane
- From the Departments of Radiology (L.H.P., J.M.K.S., A.M., M.B., C.S.G., S.A.C.), Pathology (A.M.O., X.H.), and Surgery (E.A.M.), Brigham and Women's Hospital, 75 Francis St, Boston, MA 02115
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Provenzano E, Shaaban AM. Pathology of neoadjuvant therapy and immunotherapy testing for breast cancer. Histopathology 2023; 82:170-188. [PMID: 36482270 DOI: 10.1111/his.14771] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/07/2022] [Accepted: 08/08/2022] [Indexed: 12/13/2022]
Abstract
Neoadjuvant chemotherapy (NACT) has become the standard of care for high-risk breast cancer, including triple-negative (TNBC) and HER2-positive disease. As a result, handling and reporting of breast specimens post-NACT is part of routine practice, and it is important for pathologists to recognise the changes in tumour cells, tumour-associated stroma and background breast tissue induced by NACT. Familiarity with characteristic stromal features enables identification of the pre-treatment tumour site and allows confident diagnosis of pathological complete response (pCR) which is important for decisions concerning adjuvant therapy. Neoadjuvant endocrine therapy (NAET) is used less frequently than NACT; however, the SARS-COVID-19 pandemic has changed practice, with increased use as bridging therapy if surgery is delayed. NAET also induces characteristic changes in the tumour and stroma. Changes in the tumour microenvironment following NACT and NAET are also described. Immunotherapy is approved for use in advanced TNBC, and there are several trials exploring its role in early TNBC in the neoadjuvant setting. The current biomarker to determine eligibility for treatment with immune checkpoint inhibitors is programmed death ligand-1 (PD-L1) immunohistochemistry; however, this is complicated by lack of standardisation with different drugs linked to tests using different antibodies with different scoring systems. The situation in the neoadjuvant setting is further complicated by improved pCR rates for PD-L1-positive tumours in both immune therapy and placebo arms. Alternative biomarkers are urgently needed to identify which patients will derive benefit from immunotherapy and key candidates are discussed.
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Affiliation(s)
- Elena Provenzano
- Department of Histopathology, Cambridge University Hospital NHS Foundation Trust and NIHR Cambridge Biomedical Research Centre, Cambridge, UK
| | - Abeer M Shaaban
- Queen Elizabeth Hospital Birmingham and University of Birmingham, Birmingham, UK
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Wang H, Lu Y, Li Y, Li S, Zhang X, Geng C. Nomogram for Early Prediction of Pathological Complete Response to Neoadjuvant Chemotherapy in Breast Cancer Combining Both Clinicopathological and Imaging Indicators. Curr Probl Cancer 2022; 46:100914. [PMID: 36351312 DOI: 10.1016/j.currproblcancer.2022.100914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 10/02/2022] [Accepted: 10/09/2022] [Indexed: 11/06/2022]
Abstract
To construct a nomogram for early prediction of pathological complete response (pCR) in patients with breast cancer (BC) after neoadjuvant chemotherapy (NAC). A total of 257 patients with BC from the fourth hospital of Hebei Medical University were included in the study. The patients were divided into training (n = 128) and validation groups (n = 129). Variables were screened using univariate and multivariate logistic regression analyses, and the nomogram model was set up based on the training group. The training and validation groups were validated using the receiver operating characteristic (ROC) curves and calibration plots. The diagnostic value of the nomogram was evaluated using decision curve analysis (DCA). Indicators such as hormone receptor status, clinical TNM stage, and change rate in apparent diffusion coefficient of breast magnetic resonance imaging after two NAC cycles were used for nomogram construction. The calibration plots showed high consistency between nomogram-predicted and actual pCR probabilities in the training and validation groups. The areas under the curve of the ROC curve with discrimination ability were 0.942 and 0.921 in the training and validation groups, respectively. This showed an excellent discrimination ability of our nomogram for pCR prediction. Further, DCA showed favorable diagnostic value in our model. The nomogram may be instructive to clinicians for early prediction of pCR and helpful to adjust the treatment program on time in neoadjuvant management.
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Affiliation(s)
- Haoqi Wang
- Breast Disease Diagnostic and Therapeutic Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Yuyang Lu
- Thyroid and Breast Department, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Yilun Li
- Breast Disease Diagnostic and Therapeutic Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Sainan Li
- Breast Disease Diagnostic and Therapeutic Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xi Zhang
- Breast Disease Diagnostic and Therapeutic Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Cuizhi Geng
- Breast Disease Diagnostic and Therapeutic Center, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
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Marumoto AD, Giuliano AE. Locoregional Management of Breast Cancer Following Neoadjuvant Chemotherapy. Curr Breast Cancer Rep. [DOI: 10.1007/s12609-022-00452-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nakhlis F, Portnow L, Gombos E, Daylan AEC, Leone JP, Kantor O, Richardson ET, Ho A, Dunn SA, Ohri N. Multidisciplinary Considerations in the Management of Breast Cancer Patients Receiving Neoadjuvant Chemotherapy. Curr Probl Surg 2022; 59:101191. [DOI: 10.1016/j.cpsurg.2022.101191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
Neoadjuvant therapy may reduce tumor burden preoperatively, allowing breast conservation treatment for tumors previously unresectable or requiring mastectomy without reducing disease-free survival. Oncologists can also use the response of the tumor to neoadjuvant chemotherapy (NAC) to identify treatment likely to be successful against any unknown potential distant metastasis. Accurate preoperative estimations of tumor size are necessary to guide appropriate treatment with minimal delays and can provide prognostic information. Clinical breast examination and mammography are inaccurate methods for measuring tumor size after NAC and can over- and underestimate residual disease. While US is commonly used to measure changes in tumor size during NAC due to its availability and low cost, MRI remains more accurate and simultaneously images the entire breast and axilla. No method is sufficiently accurate at predicting complete pathological response that would obviate the need for surgery. Diffusion-weighted MRI, MR spectroscopy, and MRI-based radiomics are emerging fields that potentially increase the predictive accuracy of tumor response to NAC.
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Affiliation(s)
- Cecilia Mercado
- NYU Grossman School of Medicine, Department of Radiology, New York, NY, USA
| | - Chloe Chhor
- NYU Grossman School of Medicine, Department of Radiology, New York, NY, USA
| | - John R Scheel
- University of Washington, Department of Radiology, Seattle, WA, USA
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Logullo A, Prigenzi K, Nimir C, Franco A, Campos M. Breast microcalcifications: Past, present and future (Review). Mol Clin Oncol 2022; 16:81. [PMID: 35251632 PMCID: PMC8892454 DOI: 10.3892/mco.2022.2514] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 10/19/2021] [Indexed: 11/08/2022] Open
Abstract
Mammary microcalcifications (MCs) are calcium deposits that are considered as robust markers of breast cancer when identified on mammography. MCs are frequently associated with premalignant and malignant lesions. The aim of the present review was to describe the MC types and associated radiological and pathological aspects in detail, provide insights and approaches to the topic, and describe specific clinical scenarios. The primary MC types are composed of calcium oxalate, hydroxyapatite and hydroxyapatite associated with magnesium. The first type is usually associated with benign conditions, while the others remain primarily associated with malignancy. Radiologically, MCs are classified as benign or suspicious. MCs may represent an active pathological mineralization process rather than a passive process, such as degeneration or necrosis. Practical management of breast specimens requires finely calibrated radiological pathological procedures. Understanding the molecular and structural development of MCs may contribute to breast lesion detection and treatment.
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Affiliation(s)
- Angela Logullo
- Department of Pathology, Paulista School of Medicine, Federal University of São Paulo (UNIFESP), São Paulo 04023‑062, Brazil
| | - Karla Prigenzi
- Department of Pathology, Femme Laboratories, São Paulo 04004‑030, Brazil
| | - Cristiane Nimir
- Department of Pathology, Femme Laboratories, São Paulo 04004‑030, Brazil
| | - Andreia Franco
- Department of Pathology, Paulista School of Medicine, Federal University of São Paulo (UNIFESP), São Paulo 04023‑062, Brazil
| | - Mario Campos
- Breast Imaging Service, Femme Laboratories, São Paulo 04004‑030, Brazil
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Murakami R, Tani H, Kumita S, Uchiyama N. Diagnostic performance of digital breast tomosynthesis for predicting response to neoadjuvant systemic therapy in breast cancer patients: A comparison with magnetic resonance imaging, ultrasound, and full-field digital mammography. Acta Radiol Open 2022; 10:20584601211063746. [PMID: 34992793 PMCID: PMC8725236 DOI: 10.1177/20584601211063746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/15/2021] [Indexed: 11/16/2022] Open
Abstract
Background The goals of neoadjuvant systemic therapy (NST) are to reduce tumor volume
and to provide a prognostic indicator in assessing treatment response.
Digital breast tomosynthesis (DBT) was developed and has increased interest
in clinical settings due to its higher sensitivity for breast cancer
detection compared to full-field digital mammography (FFDM). Purpose To evaluate the accuracy of DBT in assessing response to NST compared to
FFDM, ultrasound (US), and magnetic resonance imaging (MRI) in breast cancer
patients. Material and Methods In this retrospective study, 95 stages II–III breast cancer patients
undergoing NST and subsequent surgeries were enrolled. After NST, the
longest diameter of residual tumor measured by DBT, FFDM, US, and MRI was
compared with pathology. Agreements and correlations of tumor size were
assessed, and the diagnostic performance for predicting pathologic complete
response (pCR) was evaluated. Results Mean residual tumor size after NST was 19.9 mm for DBT, 18.7 mm for FFDM,
16.0 mm for US, and 18.4 mm for MRI, compared with 17.9 mm on pathology. DBT
and MRI correlated better with pathology than that of FFDM and US. The ICC
values were 0.85, 0.87, 0.74, and 0.77, respectively. Twenty-five patients
(26.3%) achieved pCR after NST. For predicting pCR, area under the receiver
operating characteristic (ROC) curve for DBT, FFDM, US, and MRI were 0.79,
0.66, 0.68, and 0.77, respectively. Conclusion DBT has good correlation with histopathology for measuring residual tumor
size after NST. DBT was comparable to MRI in assessing tumor response after
completion of NST.
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Affiliation(s)
- Ryusuke Murakami
- Department of Radiology, Nippon Medical School Hospital, Tokyo, Japan
| | - Hitomi Tani
- Department of Radiology, Nippon Medical School Hospital, Tokyo, Japan
| | - Shinichiro Kumita
- Department of Radiology, Nippon Medical School Hospital, Tokyo, Japan
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Abstract
Breast cancer is a heterogeneous disease nowadays, including different biological subtypes with a variety of possible treatments, which aim to achieve the best outcome in terms of response to therapy and overall survival. In recent years breast imaging has evolved considerably, and the ultimate goal is to predict these strong phenotypic differences noninvasively. Indeed, breast cancer multiparametric studies can highlight not only qualitative imaging parameters, as the presence/absence of a likely malignant finding, but also quantitative parameters, suggesting clinical-pathological features through the evaluation of imaging biomarkers. A further step has been the introduction of artificial intelligence and in particular radiogenomics, that investigates the relationship between breast cancer imaging characteristics and tumor molecular, genomic and proliferation features. In this review, we discuss the main techniques currently in use for breast imaging, their respective fields of use and their technological and diagnostic innovations.
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Affiliation(s)
- Francesca Galati
- Department of Radiological, Oncological and Pathological Sciences, "Sapienza" - University of Rome, Viale Regina Elena, 324, 00161 Rome, Italy.
| | - Giuliana Moffa
- Department of Radiological, Oncological and Pathological Sciences, "Sapienza" - University of Rome, Viale Regina Elena, 324, 00161 Rome, Italy
| | - Federica Pediconi
- Department of Radiological, Oncological and Pathological Sciences, "Sapienza" - University of Rome, Viale Regina Elena, 324, 00161 Rome, Italy.
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Thompson BM, Chala LF, Shimizu C, Mano MS, Filassi JR, Geyer FC, Torres US, de Mello GGN, da Costa Leite C. Pre-treatment MRI tumor features and post-treatment mammographic findings: may they contribute to refining the prediction of pathologic complete response in post-neoadjuvant breast cancer patients with radiologic complete response on MRI? Eur Radiol 2021; 32:1663-1675. [PMID: 34716780 DOI: 10.1007/s00330-021-08290-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 06/05/2021] [Accepted: 08/20/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE Radiologic complete response (rCR) in breast cancer patients after neoadjuvant chemotherapy (NAC) does not necessarily correlate with pathologic complete response (pCR), a marker traditionally associated with better outcomes. We sought to verify if data extracted from two important steps of the imaging workup (tumor features at pre-treatment MRI and post-treatment mammographic findings) might assist in refining the prediction of pCR in post-NAC patients showing rCR. METHODS A total of 115 post-NAC women with rCR on MRI (2010-2016) were retrospectively assessed. Pre-treatment MRI (lesion morphology, size, and distribution) and post-treatment mammographic findings (calcification, asymmetry, mass, architectural distortion) were assessed, as well as clinical and molecular variables. Bivariate and multivariate analyses evaluated correlation between such variables and pCR. Post-NAC mammographic findings and their correlation with ductal in situ carcinoma (DCIS) were evaluated using Pearson's correlation. RESULTS Tumor distribution at pre-treatment MRI was the only significant predictive imaging feature on multivariate analysis, with multicentric lesions having lower odds of pCR (p = 0.035). There was no significant association between tumor size and morphology with pCR. Mammographic residual calcifications were associated with DCIS (p = 0.009). The receptor subtype remained as a significant predictor, with HR-HER2 + and triple-negative status demonstrating higher odds of pCR on multivariate analyses. CONCLUSIONS Multicentric lesions on pre-NAC MRI were associated with a lower chance of pCR in post-NAC rCR patients. The receptor subtype remained a reliable predictor of pCR. Residual mammographic calcifications correlated with higher odds of malignancy, making the correlation between mammography and MRI essential for surgical planning. Key Points • The presence of a multicentric lesion on pre-NAC MRI, even though the patient reaches a radiologic complete response on MRI, is associated with a lower chance of pCR. • Molecular status of the tumor remained the only significant predictor of pathologic complete response in such patients in the present study. • Post-neoadjuvant residual calcifications found on mammography were related to higher odds of residual malignancy, making the correlation between mammography and MRI essential for surgical planning.
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Affiliation(s)
- Bruna M Thompson
- Institute of Radiology, Clinics Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil
| | - Luciano F Chala
- Fleury Group, Rua Cincinato Braga, 282, Bela Vista, São Paulo, SP, 01333-010, Brazil
| | - Carlos Shimizu
- Institute of Radiology, Clinics Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil.,Fleury Group, Rua Cincinato Braga, 282, Bela Vista, São Paulo, SP, 01333-010, Brazil
| | - Max S Mano
- Department of Oncology, Hospital Sírio Libanês, São Paulo, Brazil
| | - José R Filassi
- Department of Gynecology and Obstetrics, Mastology Section, Instituto Do Câncer Do Estado de São Paulo, São Paulo, Brazil
| | - Felipe C Geyer
- Department of Pathology, Instituto Do Câncer Do Estado de São Paulo, São Paulo, Brazil
| | - Ulysses S Torres
- Fleury Group, Rua Cincinato Braga, 282, Bela Vista, São Paulo, SP, 01333-010, Brazil.
| | | | - Cláudia da Costa Leite
- Institute of Radiology, Clinics Hospital, School of Medicine, University of São Paulo, São Paulo, Brazil
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Falcone V, Reiser E, Grula L, Bago-Horvath Z, Stolz M, Catic A, Deutschmann C, Singer C, Pfeiler G. Correlation Between Preoperative Radiological and Postoperative Pathological Tumor Size in Patients With HER2 + Breast Cancer After Neoadjuvant Chemotherapy Plus Trastuzumab and Pertuzumab. Clin Breast Cancer 2021; 22:149-160. [PMID: 34229944 DOI: 10.1016/j.clbc.2021.05.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 05/29/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND Neoadjuvant chemotherapy (NAC) in combination with anti-HER2 treatment is standard of care in patients with early HER2 positive breast cancer. Preoperative radiological evaluation is mandatory for defining the extent of surgery. In this study, we evaluated the correlation between preoperative radiological and postoperative pathological tumor size in early HER2 positive patients after neoadjuvant chemotherapy in combination with trastuzumab and pertuzumab. In a patient population with HER2 positive breast cancer, who received neoadjuvant chemotherapy and anti-HER2 treatment, the correlation between preoperative radiological and postoperative pathological tumor size was performed. Concordance of radiological and pathological tumor size was found in 55.7%, leading to more extensive breast surgery as required in 7 cases and to the underestimation of 6 neoplastic lesions before surgery, respectively. PATIENTS AND METHODS Seventy early HER2 positive breast cancer patients were included and retrospectively analysed. All preoperative radiological assessments as well as the tumor board decision on surgical extent and pathological evaluation were completed at the Medical University of Vienna. Preoperative radiological assessment of tumor size and lymph node status were compared with final histopathological findings. The correlation between different radiological modalities regarding tumor size was investigated. RESULTS Concordance of radiological and pathological tumor size was found in 55.7 % (50% by sonography and 66.7% by MRI, respectively) of patients with a nonsignificant correlation of r = 0.31 (P = .08). Of the 39 patients with pathologic complete remission (pCR), 16 were also classified as radiological complete response (rCR) while 23 of those showed a radiological stable disease or partial response. In 6 patients, radiological assessment showed a CR but invasive cancer with a tumor size range from 7 to 36 mm was found in histopathological examination. Neither menopausal status (P= .69) nor BMI (P = .60) and age (P = .50) had an impact on the correlation between radiological and histopathological tumor size. Regarding lymph node status, a statistically significant association and clinically relevant correlation between radiological and histopathological evaluation was found (r = 0.66, P < .001). CONCLUSION Concordance between radiology and histopathology was low regarding tumor size after NAC in combination with trastuzumab and pertuzumab, but significant regarding lymph node status.
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Affiliation(s)
- Veronica Falcone
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecologic Oncology, Medical University of Vienna, Austria
| | - Elisabeth Reiser
- Department of Obstetrics and Gynecology, Division of Gynecological Endocrinology and Reproductive medicine, Medical University of Innsbruck, Austria
| | - Lenka Grula
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecologic Oncology, Medical University of Vienna, Austria
| | - Zsuzsanna Bago-Horvath
- Department of Pathology, Division of Gynecopathology and Senology, Medical University of Vienna, Austria
| | - Myriam Stolz
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecologic Oncology, Medical University of Vienna, Austria
| | - Anja Catic
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecologic Oncology, Medical University of Vienna, Austria
| | - Christine Deutschmann
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecologic Oncology, Medical University of Vienna, Austria
| | - Christian Singer
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecologic Oncology, Medical University of Vienna, Austria
| | - Georg Pfeiler
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecologic Oncology, Medical University of Vienna, Austria.
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16
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Groen EJ, van der Noordaa MEM, Schaapveld M, Sonke GS, Mann RM, van Ramshorst MS, Lips EH, Vrancken Peeters MTFD, van Duijnhoven FH, Wesseling J. Pathologic response of ductal carcinoma in situ to neoadjuvant systemic treatment in HER2-positive breast cancer. Breast Cancer Res Treat 2021; 189:213-24. [PMID: 33945043 DOI: 10.1007/s10549-021-06235-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 04/17/2021] [Indexed: 11/30/2022]
Abstract
Purpose The presence of extensive ductal carcinoma in situ (DCIS) adjacent to HER2-positive invasive breast cancer (IBC) is often a contra-indication for breast-conserving surgery, even in case of excellent treatment response of the invasive component. Data on the response of DCIS to neoadjuvant systemic treatment (NST) are limited. Therefore, we estimated the response of adjacent DCIS to NST-containing HER2-blockade in HER2-positive breast cancer patients and assessed the association of clinicopathological and radiological factors with response. Methods Pre-NST biopsies were examined to determine presence of DCIS in all women with HER2-positive IBC treated with trastuzumab-containing NST ± pertuzumab between 2004 and 2017 in a comprehensive cancer center. When present, multiple DCIS factors, including grade, calcifications, necrosis, hormone receptor, and Ki-67 expression, were scored. Associations of clinicopathological and radiological factors with complete response were assessed using logistic regression models. Results Adjacent DCIS, observed in 138/316 patients with HER2-positive IBC, was eradicated after NST in 46% of patients. Absence of calcifications suspicious for malignancy on pre-NST mammography (odds ratio (OR) 3.75; 95% confidence interval (95% CI) 1.72–8.17), treatment with dual HER2-blockade (OR 2.36; 95% CI 1.17–4.75), a (near) complete response on MRI (OR 3.55; 95% CI 1.31–9.64), and absence of calcifications (OR 3.19; 95% CI 1.34–7.60) and Ki-67 > 20% in DCIS (OR 2.74; 95% CI 1.09–6.89) on pre-NST biopsy were significantly associated with DCIS response. Conclusions As DCIS can respond to NST containing HER2-blockade, the presence of extensive DCIS in HER2-positive breast cancer before NST should not always indicate a mastectomy. The predictive factors we found could be helpful when considering breast-conserving surgery in these patients. Supplementary Information The online version contains supplementary material available at 10.1007/s10549-021-06235-2.
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17
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Jones EF, Hathi DK, Freimanis R, Mukhtar RA, Chien AJ, Esserman LJ, van’t Veer LJ, Joe BN, Hylton NM. Current Landscape of Breast Cancer Imaging and Potential Quantitative Imaging Markers of Response in ER-Positive Breast Cancers Treated with Neoadjuvant Therapy. Cancers (Basel) 2020; 12:E1511. [PMID: 32527022 PMCID: PMC7352259 DOI: 10.3390/cancers12061511] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 12/24/2022] Open
Abstract
In recent years, neoadjuvant treatment trials have shown that breast cancer subtypes identified on the basis of genomic and/or molecular signatures exhibit different response rates and recurrence outcomes, with the implication that subtype-specific treatment approaches are needed. Estrogen receptor-positive (ER+) breast cancers present a unique set of challenges for determining optimal neoadjuvant treatment approaches. There is increased recognition that not all ER+ breast cancers benefit from chemotherapy, and that there may be a subset of ER+ breast cancers that can be treated effectively using endocrine therapies alone. With this uncertainty, there is a need to improve the assessment and to optimize the treatment of ER+ breast cancers. While pathology-based markers offer a snapshot of tumor response to neoadjuvant therapy, non-invasive imaging of the ER disease in response to treatment would provide broader insights into tumor heterogeneity, ER biology, and the timing of surrogate endpoint measurements. In this review, we provide an overview of the current landscape of breast imaging in neoadjuvant studies and highlight the technological advances in each imaging modality. We then further examine some potential imaging markers for neoadjuvant treatment response in ER+ breast cancers.
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Affiliation(s)
- Ella F. Jones
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94115, USA; (D.K.H.); (R.F.); (B.N.J.); (N.M.H.)
| | - Deep K. Hathi
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94115, USA; (D.K.H.); (R.F.); (B.N.J.); (N.M.H.)
| | - Rita Freimanis
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94115, USA; (D.K.H.); (R.F.); (B.N.J.); (N.M.H.)
| | - Rita A. Mukhtar
- Department of Surgery, University of California, San Francisco, CA 94115, USA;
| | - A. Jo Chien
- School of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA 94115, USA; (A.J.C.); (L.J.v.V.)
| | - Laura J. Esserman
- Department of Surgery, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA 94115, USA;
| | - Laura J. van’t Veer
- School of Medicine, Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA 94115, USA; (A.J.C.); (L.J.v.V.)
| | - Bonnie N. Joe
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94115, USA; (D.K.H.); (R.F.); (B.N.J.); (N.M.H.)
| | - Nola M. Hylton
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94115, USA; (D.K.H.); (R.F.); (B.N.J.); (N.M.H.)
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Affiliation(s)
- Monica Morrow
- Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Atif J Khan
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
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Kim EY, Do SI, Yun JS, Park YL, Park CH, Moon JH, Youn I, Choi YJ, Ham SY, Kook SH. Preoperative evaluation of mammographic microcalcifications after neoadjuvant chemotherapy for breast cancer. Clin Radiol 2020; 75:641.e19-641.e27. [PMID: 32291081 DOI: 10.1016/j.crad.2020.03.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 03/11/2020] [Indexed: 12/20/2022]
Abstract
AIM To assess the predictive value of preoperative residual mammographic microcalcifications for residual tumours after neoadjuvant chemotherapy (NAC) for breast cancer. MATERIALS AND METHODS This single-centre retrospective study included breast cancer patients who underwent NAC and demonstrated suspicious microcalcifications within or near the tumour bed on mammography from June 2015 to August 2018. The residual microcalcifications and remnant lesion on magnetic resonance imaging (MRI) were correlated with histopathological findings of residual tumours and immunohistochemical markers. RESULTS A total of 96 patients were included. Ten patients achieved pathological complete response (pCR) and previous suspicious microcalcifications were associated with benign pathology in 10.4% (10/96) of the patients. In the remaining 86 patients who did not achieve pCR, 61.5% (59/96) of the residual microcalcifications were associated with invasive or in situ carcinoma and 28.1% (27/96) with benign pathology. Hormone receptor-positive (HR+) patients had the highest proportion of residual malignant microcalcifications compared to HR- patients (48.9% versus 13.5%, respectively; p=0.019). MRI correlated better than residual microcalcifications on mammography in predicting residual tumour extent in all subtypes (ICC=0.709 versus 0.365). MRI also showed higher correlation with residual tumour size for the HR-/HER2+ and HR-/HER2- subtype (ICC=0.925 and 0.876, respectively). CONCLUSION The extent of microcalcifications on mammography after NAC did not correlate with the extent of residual cancer in 38.5% of women. Regardless of the extent of microcalcifications, residual tumour extent on MRI after NAC and molecular subtype could be an accurate tool in evaluating residual cancer after NAC.
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Affiliation(s)
- E Y Kim
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S-I Do
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - J-S Yun
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y L Park
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - C H Park
- Department of Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J H Moon
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - I Youn
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y J Choi
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S-Y Ham
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S H Kook
- Department of Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
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20
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Chen CA, Hayward JH, Woodard GA, Ray KM, Starr CJ, Hylton NM, Joe BN, Lee AY. Complete Breast MRI Response to Neoadjuvant Chemotherapy and Prediction of Pathologic Complete Response. J Breast Imaging 2019; 1:217-222. [PMID: 38424754 DOI: 10.1093/jbi/wbz028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Indexed: 03/02/2024]
Abstract
OBJECTIVE To assess the negative predictive value (NPV) of breast MRI in detecting residual disease after neoadjuvant chemotherapy (NAC) in women with invasive breast cancer, overall and by tumor subtype. METHODS An institutional review board approved retrospective study from January 2010 through December 2016 identified patients with invasive breast cancer who achieved complete MRI response to NAC, defined as the absence of residual enhancement in the tumor bed above background parenchymal enhancement. During the study period, it was our routine practice to assign a BI-RADS 1 or 2 assessment to these cases. The NPV was defined as the ability of a complete MRI response to predict pathologic complete response (pCR) at final surgical pathology. Statistical analyses were performed using a Fisher exact test. RESULTS Among 244 patients who underwent MRI to assess NAC response, 38 (16%) were determined to have complete MRI response by the interpreting radiologist. Of these, 20/38 (53%) had pCR. Complete MRI response did not significantly predict pCR for the total group (P < 0.9). However, NPVs significantly varied by molecular subtype (P < 0.004). True negative MRIs by tumor subtype were 2/10 (20%) for hormone receptor (HR)+/HER2-, 3/10 (30%) for HR+/HER2+, 6/8 (75%) for HR-/HER+, and 9/10 (90%) for triple negative (TN) subtypes. Complete MRI response significantly predicted pCR for only the TN subtype (NPV 90%; P < 0.02). CONCLUSIONS In patients with complete MRI response, 53% had pCR. While MRI lacks sufficient NPV to obviate the need for surgical excision, it may add prognostic value for certain molecular subtypes. The TN subtype demonstrated the highest NPV.
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Affiliation(s)
- Christina A Chen
- University of California San Francisco, Department of Radiology and Medical Imaging, San Francisco, CA
| | - Jessica H Hayward
- University of California San Francisco, Department of Radiology and Medical Imaging, San Francisco, CA
| | | | - Kimberly M Ray
- University of California San Francisco, Department of Radiology and Medical Imaging, San Francisco, CA
| | | | - Nola M Hylton
- University of California San Francisco, Department of Radiology and Medical Imaging, San Francisco, CA
| | - Bonnie N Joe
- University of California San Francisco, Department of Radiology and Medical Imaging, San Francisco, CA
| | - Amie Y Lee
- University of California San Francisco, Department of Radiology and Medical Imaging, San Francisco, CA
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21
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Choi WJ, Kim HH, Cha JH, Shin HJ, Chae EY, Yoon GY. Complete response on MR imaging after neoadjuvant chemotherapy in breast cancer patients: Factors of radiologic-pathologic discordance. Eur J Radiol 2019; 118:114-21. [DOI: 10.1016/j.ejrad.2019.06.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/17/2019] [Accepted: 06/20/2019] [Indexed: 01/07/2023]
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22
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Yim H, Ha T, Kang DK, Park SY, Jung Y, Kim TH. Change in microcalcifications on mammography after neoadjuvant chemotherapy in breast cancer patients: correlation with tumor response grade and comparison with lesion extent. Acta Radiol 2019; 60:131-139. [PMID: 29764199 DOI: 10.1177/0284185118776491] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND After neoadjuvant chemotherapy (NAC), persistent microcalcifications are often observed in spite of a decrease in the primary tumor size. PURPOSE To analyze the changes in microcalcifications after NAC and to evaluate the accuracy of residual microcalcifications in predicting the extent of residual cancer. MATERIAL AND METHODS Eighty patients who received NAC and underwent both mammography and magnetic resonance imaging (MRI) before and after the completion of NAC were included. The location of microcalcifications was classified into two types: inside the mass and outside the mass. RESULTS The extent of the residual calcifications was larger than the pathologic residual lesion in 14 (74%) of 19 patients with complete response (CR) on MRI, but the discrepancy was <1 cm in eight (42%) patients. The median value of the discrepancy was significantly higher in patients showing CR with outside calcifications compared to CR with inside calcifications (2.0 cm vs. 0.7 cm, P = 0.008). After NAC, the decrease of calcifications was more frequently observed in cancers showing CR on MRI or Miller-Payne grade 5 and the increase of calcifications more frequently occurred in cancers showing progress disease on MRI or Miller-Payne grade 1 ( P < 0.001 and P = 0.044). CONCLUSION The change in microcalcifications after NAC was correlated with the tumor response to NAC. The discrepancy was highest in the group showing CR on MRI with outside calcifications. In tumors with inside calcifications, the discrepancy was relatively low within an acceptable range.
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Affiliation(s)
- Hyunee Yim
- Department of Pathology, Ajou University School of Medicine, Gyeonggi-do, Republic of Korea
| | - Taeyang Ha
- Department of Radiology, Ajou University School of Medicine, Gyeonggi-do, Republic of Korea
| | - Doo Kyoung Kang
- Department of Radiology, Ajou University School of Medicine, Gyeonggi-do, Republic of Korea
| | - Seong Young Park
- Department of Radiology, Ajou University School of Medicine, Gyeonggi-do, Republic of Korea
| | - Yongsik Jung
- Department of Surgery, Ajou University School of Medicine, Gyeonggi-do, Republic of Korea
| | - Tae Hee Kim
- Department of Radiology, Ajou University School of Medicine, Gyeonggi-do, Republic of Korea
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23
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Park J, Chae EY, Cha JH, Shin HJ, Choi WJ, Choi YW, Kim HH. Comparison of mammography, digital breast tomosynthesis, automated breast ultrasound, magnetic resonance imaging in evaluation of residual tumor after neoadjuvant chemotherapy. Eur J Radiol 2018; 108:261-268. [PMID: 30396666 DOI: 10.1016/j.ejrad.2018.09.032] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/17/2018] [Accepted: 09/29/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND To compare the accuracy of mammography (MG), digital breast tomosynthesis (DBT), automated breast ultrasound (ABUS) and magnetic resonance imaging (MRI) for the assessment of residual tumor extent in breast cancer after neoadjuvant chemotherapy (NAC). METHODS Fifty-one stage II-III breast cancer undergoing NAC were enrolled from March 2015 to December 2016. The longest diameter of residual tumor measured with MG, DBT, ABUS and MRI was compared with the pathologic tumor size. Statistical analysis was performed using intraclass correlation coefficients (ICC) and marginal homogeneity test. Receiver operating characteristics (ROC) analysis was used to evaluate the diagnostic performance for predicting pathologic complete response (pCR). RESULTS MRI size correlated well with pathology (ICC = 0.83), significantly better than MG, DBT and ABUS size (ICC = 0.56, ICC = 0.63 and ICC = 0.55, respectively). The discrepancy between MRI and pathology was statistical different from that of MG and ABUS (p = 0.0231 and 0.0039, respectively), but not different from that of DBT (p = 0.5727). For predicting pCR, MRI and DBT had a better performance compared to MG and US (area under the ROC curve: 0.92, 0.84, 0.72, 0.75, respectively; p = 0.3749 for DBT, p = 0.0972 for MG and p = 0.0596 for ABUS, when MRI being reference). CONCLUSIONS MRI and DBT allow more accurate assessment of tumor size compared to pathology compared with MG and ABUS. MRI and DBT outperform MG and ABUS in the prediction of pathologic complete response.
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Affiliation(s)
- Jiyoon Park
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea; Department of Radiology, Research Institute of Radiology, Chung-Ang University Hospital, Seoul, Republic of Korea
| | - Eun Young Chae
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Joo Hee Cha
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hee Jung Shin
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Woo Jung Choi
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Young-Wook Choi
- Korea Electrotechnology Research Institute, Ansan, Republic of Korea
| | - Hak Hee Kim
- Department of Radiology, Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
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Slanetz PJ, Moy L, Baron P, diFlorio RM, Green ED, Heller SL, Holbrook AI, Lee SJ, Lewin AA, Lourenco AP, Niell B, Stuckey AR, Trikha S, Vincoff NS, Weinstein SP, Yepes MM, Newell MS. ACR Appropriateness Criteria ® Monitoring Response to Neoadjuvant Systemic Therapy for Breast Cancer. J Am Coll Radiol 2018; 14:S462-S475. [PMID: 29101985 DOI: 10.1016/j.jacr.2017.08.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 08/14/2017] [Indexed: 12/28/2022]
Abstract
Patients with locally advanced invasive breast cancers are often treated with neoadjuvant chemotherapy prior to definitive surgical intervention. The primary aims of this approach are to: 1) reduce tumor burden thereby permitting breast conservation rather than mastectomy; 2) promptly treat possible metastatic disease, whether or not it is detectable on preoperative staging; and 3) potentially tailor future chemotherapeutic decisions by monitoring in-vivo tumor response. Accurate radiological assessment permits optimal management and planning in this population. However, assessment of tumor size and response to treatment can vary depending on the modality used, the measurement technique (such as single longest diameter, 3-D measurements, or calculated tumor volume), and varied response of different tumor subtypes to neoadjuvant chemotherapy (such as concentric shrinkage or tumor fragmentation). As discussed in further detail, digital mammography, digital breast tomosynthesis, US and MRI represent the key modalities with potential to help guide patient management. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion may supplement the available evidence to recommend imaging or treatment.
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Affiliation(s)
| | - Priscilla J Slanetz
- Principal Author, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
| | - Linda Moy
- Panel Vice Chair, NYU Clinical Cancer Center, New York, New York
| | - Paul Baron
- Roper St. Francis Physician Partners Breast Surgery, Charleston, South Carolina; American College of Surgeons
| | | | - Edward D Green
- The University of Mississippi Medical Center, Jackson, Mississippi
| | | | | | - Su-Ju Lee
- University of Cincinnati, Cincinnati, Ohio
| | - Alana A Lewin
- New York University School of Medicine, New York, New York
| | - Ana P Lourenco
- Alpert Medical School of Brown University and Rhode Island Hospital, Providence, Rhode Island
| | | | - Ashley R Stuckey
- Women and Infants Hospital, Providence, Rhode Island; American Congress of Obstetricians and Gynecologists
| | | | - Nina S Vincoff
- Hofstra Northwell School of Medicine, Manhasset, New York
| | - Susan P Weinstein
- Perelman School of Medicine of the University of Pennsylvania, Philadelphia, Pennsylvania
| | | | - Mary S Newell
- Panel Chair, Emory University Hospital, Atlanta, Georgia
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Um E, Kang JW, Lee S, Kim HJ, Yoon TI, Sohn G, Chung IY, Kim J, Lee JW, Son BH, Ahn SH, Ko BS. Comparing Accuracy of Mammography and Magnetic Resonance Imaging for Residual Calcified Lesions in Breast Cancer Patients Undergoing Neoadjuvant Systemic Therapy. Clin Breast Cancer 2018; 18:e1087-e1091. [PMID: 29703689 DOI: 10.1016/j.clbc.2018.03.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 01/08/2018] [Accepted: 03/10/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Neoadjuvant systemic therapy (NST) is performed to increase the rate of breast-conserving surgery in advanced breast cancer patients. Although magnetic resonance imaging (MRI) is accurate in predicting residual cancer, if calcification remains, the issue of whether to perform the surgery on the basis of the residual tumor prediction range in mammography (MMG) or MRI has not yet been elucidated. This study aimed to estimate the accuracy of predicting residual tumor after NST for residual microcalcification on mammographic and enhancing lesion on MRI. PATIENTS AND METHODS This was a single-center, retrospective study. We included breast cancer patients who underwent NST, had microcalcifications in the post-NST MMG, and underwent surgery from January 2, 2013 to December 30, 2014 at Asan Medical Center. Patients with post-NST MMG as well as MRI were included. Final pathologic tumor size with histopathology and biomarker status were obtained postoperatively. RESULTS In total, 151 patients were included in this study. Overall, MRI correlated better than MMG in predicting the tumor size (intraclass correlation coefficient [ICC], 0.769 vs. 0.651). For hormone receptor (HR)-positive (HR+)/HER2- subtype, MMG had higher correlation than MRI (ICC = 0.747 vs. 0.575). In HR- subtype, MRI had a strong correlation with pathology (HR-/HER2+ or triple negative (TN), ICC = 0.939 vs. 0.750), whereas MMG tended to overestimate the tumor size (HR-/HER2+ or TN, ICC = 0.543 vs. 0.479). CONCLUSION Post-NST residual microcalcifications on MMG have a lower correlation with residual tumor size than MRI. Other than HR+/HER2- subtype, the extent of calcifications on preoperative evaluation might not be accurate in evaluating the residual extent of the tumor after NST.
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Affiliation(s)
- Eunhae Um
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Ji-Won Kang
- Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - SaeByul Lee
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Hee Jeong Kim
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Tae In Yoon
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Guiyun Sohn
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Il Yong Chung
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jisun Kim
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jong Won Lee
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Byung Ho Son
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Sei Hyun Ahn
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Beom Seok Ko
- Division of Breast Surgery, Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea.
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An YY, Kim SH, Kang BJ. Residual microcalcifications after neoadjuvant chemotherapy for locally advanced breast cancer: comparison of the accuracies of mammography and MRI in predicting pathological residual tumor. World J Surg Oncol 2017; 15:198. [PMID: 29110671 PMCID: PMC5674773 DOI: 10.1186/s12957-017-1263-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 10/23/2017] [Indexed: 11/17/2022] Open
Abstract
Background The aims of this study were to correlate residual mammographic microcalcifications after neoadjuvant chemotherapy (NAC) with pathological results and to compare the accuracy of mammography (MG) and magnetic resonance imaging (MRI) in predicting the size of residual tumors. Methods The imaging findings and pathological results for 29 patients with residual microcalcifications after NAC were reviewed. We compared the agreement of the measured extent of residual microcalcifications based on MG and residual enhancement based on MRI with the residual tumor size based on pathology. Results At final pathology, residual microcalcifications were malignant in 55.2% of cases and benign in 44.8% of cases. In 36% of non-pCR cases, the remaining microcalcifications were benign. Compared with the measurements of residual tumor obtained from pathology, MG showed poor agreement, and MRI showed moderate agreement, for the entire group (concordance correlation coefficient [CCC] = 0.196 vs. 0.566). Regarding the receptor status, the agreement of measurements obtained by MG was superior to that obtained by MRI (CCC = 0.5629, 0.5472 vs. 0.4496, 0.4279) for ER(+) and HER2(−) tumors. In ER(−) tumors, the measurements obtained by MG showed the lowest agreement with the pathological tumor size, which had the highest agreement with those obtained by MRI (CCC = − 0.0162 vs. 0.8584). Conclusions Residual mammographic microcalcifications after NAC did not correlate with malignancy in 44.8% of cases. Residual microcalcifications on MG were poorly correlated with pathological tumor size, and MRI might be more reliable for predicting residual tumor size after NAC. Tumor receptor status affected the accuracy of both MG and MRI for predicting residual tumor size after NAC. Trial registration CRIS, KCT0002281; registered 6 April 2015, retrospectively registered
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Affiliation(s)
- Yeong Yi An
- Department of Radiology, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, 93, Jungbu-daero, Paldal-gu, Suwon-si, 16247, Gyeonggi-do, Republic of Korea
| | - Sung Hun Kim
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea
| | - Bong Joo Kang
- Department of Radiology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.
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27
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Grimm LJ, Ghate SV, Hwang ES, Soo MS. Imaging Features of Patients Undergoing Active Surveillance for Ductal Carcinoma in Situ. Acad Radiol 2017; 24:1364-71. [PMID: 28705686 DOI: 10.1016/j.acra.2017.05.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 05/21/2017] [Accepted: 05/24/2017] [Indexed: 11/21/2022]
Abstract
RATIONALE AND OBJECTIVES The aim of this study was to describe the imaging appearance of patients undergoing active surveillance for ductal carcinoma in situ (DCIS). MATERIALS AND METHODS We retrospectively identified 29 patients undergoing active surveillance for DCIS from 2009 to 2014. Twenty-two patients (group 1) refused surgery or were not surgical candidates. Seven patients (group 2) enrolled in a trial of letrozole and deferred surgical excision for 6-12 months. Pathology and imaging results at the initial biopsy and follow-up were recorded. RESULTS In group 1, the median follow-up was 2.7 years (range: 0.6-13.9 years). Fifteen patients (68%) remained stable. Seven patients (32%) underwent additional biopsies with invasive ductal carcinoma diagnosed in two patients after 3.9 and 3.6 years who developed increasing calcifications and new masses. In group 2, one patient (14%) was upstaged to microinvasive ductal carcinoma at surgery. Among the patients in both groups with calcifications (n = 26), there was no progression to invasive disease among those with stable (50%, 13/26) or decreased (19%, 5/26) calcifications. CONCLUSIONS Among a DCIS active surveillance cohort, invasive disease progression presented as increasing calcifications and a new mass following more than 3.5 years of stable imaging. In contrast, there was no progression to invasive disease among cases of DCIS with stable or decreasing calcifications. Close imaging is a key follow-up component in active surveillance.
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Affiliation(s)
- Amy M. Fowler
- From the Department of Radiology, University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792-3252 (A.M.F.); Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa (D.A.M.); and Department of Radiology and Biomedical Imaging, University of California–San Francisco School of Medicine, San Francisco, Calif (B.N.J.)
| | - David A. Mankoff
- From the Department of Radiology, University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792-3252 (A.M.F.); Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa (D.A.M.); and Department of Radiology and Biomedical Imaging, University of California–San Francisco School of Medicine, San Francisco, Calif (B.N.J.)
| | - Bonnie N. Joe
- From the Department of Radiology, University of Wisconsin School of Medicine and Public Health, 600 Highland Ave, Madison, WI 53792-3252 (A.M.F.); Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa (D.A.M.); and Department of Radiology and Biomedical Imaging, University of California–San Francisco School of Medicine, San Francisco, Calif (B.N.J.)
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29
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Wong SM, De Los Santos J, Basik M. Eliminating Surgery in Early-Stage Breast Cancer: Pipe-Dream or Worthy Consideration in Selected Patients? Curr Breast Cancer Rep 2017. [DOI: 10.1007/s12609-017-0242-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Feliciano Y, Mamtani A, Morrow M, Stempel MM, Patil S, Jochelson MS. Do Calcifications Seen on Mammography After Neoadjuvant Chemotherapy for Breast Cancer Always Need to Be Excised? Ann Surg Oncol 2017; 24:1492-1498. [PMID: 28058550 PMCID: PMC5485840 DOI: 10.1245/s10434-016-5741-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND This study aimed to determine the relationship between mammographic calcifications and magnetic resonance imaging (MRI) tumoral enhancement before and after neoadjuvant chemotherapy (NAC) and to assess the impact of these findings on surgical management. METHODS This Institutional Review Board-approved, Health Insurance Portability and Accountability Act (HIPAA)-compliant retrospective study involved breast cancer patients who underwent NAC between 2009 and 2015. The study cohort comprised 90 patients with pre- and posttreatment MRI and mammograms demonstrating calcifications within the tumor bed either at presentation or after treatment. The data gathered included pre- and post-NAC imaging findings and post-NAC histopathology, particularly findings associated with calcifications. Comparisons were made using Fisher's exact test, with p values lower than 0.05 considered significant. RESULTS Complete resolution of MRI enhancement occurred for 44% of the patients, and a pathologic complete response (pCR) was achieved for 32% of the patients. No statistically significant correlation between changes in mammographic calcifications and MRI enhancement was found (p = 0.12). Resolution of enhancement was strongly correlated with pCR (p < 0.0001). The majority of the patients with pCR demonstrated complete resolution of enhancement (79%, 23/29). No statistically significant relationship was found between changes in calcifications and rates of pCR (p = 0.06). A pCR was achieved most frequently for patients with resolution of enhancement and new, increasing, or unchanged calcifications (p < 0.0001). CONCLUSIONS Although calcifications seen on post-NAC mammography may be associated with benign disease, loss of MRI enhancement does not predict the absence of residual tumor with sufficient accuracy to leave calcifications in place. Complete excision of tumor bed calcifications remains standard practice and a substantial limitation to NAC use for downstaging patients to be eligible for breast conservation treatment.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Breast Neoplasms/diagnostic imaging
- Breast Neoplasms/drug therapy
- Breast Neoplasms/pathology
- Breast Neoplasms/surgery
- Calcinosis/diagnostic imaging
- Calcinosis/drug therapy
- Calcinosis/pathology
- Calcinosis/surgery
- Carcinoma, Ductal, Breast/diagnostic imaging
- Carcinoma, Ductal, Breast/drug therapy
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Ductal, Breast/surgery
- Carcinoma, Lobular/diagnostic imaging
- Carcinoma, Lobular/drug therapy
- Carcinoma, Lobular/pathology
- Carcinoma, Lobular/surgery
- Chemotherapy, Adjuvant
- Contrast Media
- Female
- Follow-Up Studies
- Humans
- Magnetic Resonance Imaging/methods
- Mammography
- Mastectomy
- Middle Aged
- Neoadjuvant Therapy
- Neoplasm Invasiveness
- Neoplasm, Residual/diagnostic imaging
- Neoplasm, Residual/drug therapy
- Neoplasm, Residual/pathology
- Neoplasm, Residual/surgery
- Prognosis
- Retrospective Studies
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Affiliation(s)
- Yara Feliciano
- Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Anita Mamtani
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Monica Morrow
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Michelle M Stempel
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sujata Patil
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Maxine S Jochelson
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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31
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Goldberg H, Zandbank J, Kent V, Leonov-Polak M, Livoff A, Chernihovsky A, Guindy M, Evron E. Chemotherapy may eradicate ductal carcinoma in situ (DCIS) but not the associated microcalcifications. Eur J Surg Oncol 2017; 43:1415-1420. [PMID: 28526187 DOI: 10.1016/j.ejso.2017.04.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 03/27/2017] [Accepted: 04/24/2017] [Indexed: 11/18/2022] Open
Abstract
INTRODUCTION We studied the effect of neoadjuvant chemotherapy (NAC) ± trastuzumab on the ductal carcinoma in situ (DCIS) component in patients with locally advanced breast cancer who achieved pathological complete response (pCR). METHODS The diagnostic biopsies of 92 consecutive breast cancer patients that were treated with neoadjuvant chemotherapy (NAC) ± trastuzumab were evaluated for the presence of DCIS. Upon completion of NAC, the surgical specimens were evaluated for complete eradication of both the invasive and non-invasive cancer in the breast. The pretreatment mammograms were evaluated for the presence of microcalcifications and compared to the mammograms that were obtained upon completion of therapy prior to surgery. RESULTS Thirty of 92 patients (33%) had a substantial component of DCIS in the pretreatment biopsy. Thirty nine patients (42%) achieved pCR: 22 (56%) following NAC + trastuzumab, 17 (32%) following chemotherapy only. Ten of 30 patients (33%) with DCIS component achieved pCR: 4 received chemotherapy only, in 6 trastuzumab was added. Multiple microcalcifications on the pretreatment mammograms were observed in 3 of 10 patients with DCIS who achieved pCR. No reduction in the area of calcifications was observed following NAC. CONCLUSIONS DCIS may be completely eradicated by NAC ± trastuzumab. However, associated microcalcifications probably persist. Patients with locally advanced breast cancer with substantial DCIS may still opt for NAC and breast conservation as the DCIS component may respond and even completely disappear following NAC. Residual widespread microcalcifications after NAC do not necessarily indicate residual cancer. Larger studies are needed to direct the surgical management of these patients.
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Affiliation(s)
- H Goldberg
- Galilee Medical Center, Nahariya, Israel; Faculty of Medicine in the Galilee, Bar-Ilan University, Safed, Israel.
| | - J Zandbank
- Assaf Harofeh Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - V Kent
- Assaf Harofeh Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - M Leonov-Polak
- Assaf Harofeh Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - A Livoff
- Galilee Medical Center, Nahariya, Israel
| | | | - M Guindy
- Assuta Medical Center, Tel Aviv, Israel
| | - E Evron
- Assaf Harofeh Medical Center, Zerifin, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; Assuta Medical Center, Tel Aviv, Israel
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32
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Rezai M, Kraemer S. Breast-Conserving Surgery After Neoadjuvant Therapy. Breast Cancer 2017. [DOI: 10.1007/978-3-319-48848-6_28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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33
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Affiliation(s)
- Laura S Dominici
- Surgical Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Monica Morrow
- Department of Surgery, Weill Cornell Medical College, Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Jennifer Bellon
- Radiation Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA
| | - Tari A King
- Surgical Oncology, Brigham and Women's Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA.
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Park S, Yoon JH, Sohn J, Park HS, Moon HJ, Kim MJ, Kim EK, Kim SI, Park BW. Magnetic Resonance Imaging after Completion of Neoadjuvant Chemotherapy Can Accurately Discriminate between No Residual Carcinoma and Residual Ductal Carcinoma In Situ in Patients with Triple-Negative Breast Cancer. PLoS One 2016; 11:e0149347. [PMID: 26866475 PMCID: PMC4750980 DOI: 10.1371/journal.pone.0149347] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 01/29/2016] [Indexed: 12/17/2022] Open
Abstract
Background The accurate evaluation of favorable response to neoadjuvant chemotherapy (NCT) is critical to determine the extent of surgery. We investigated independent clinicopathological and radiological predictors to discriminate no residual carcinoma (ypT0) from residual ductal carcinoma in situ (ypTis) in breast cancer patients who received NCT. Patients and Methods Parameters of 117 patients attaining pathological complete response (CR) in the breast after NCT between January 2010 and December 2013 were retrospectively evaluated by univariate and multivariate analyses. All patients underwent mammography, ultrasound, and magnetic resonance imaging (MRI) before and after NCT. Results There were 67 (57.3%) patients with ypT0. These patients were associated with hormone receptor-negative status, human epidermal growth factor receptor-2 (HER2)-negative tumors, and a higher likelihood of breast-conservation surgery. Baseline mammographic and MRI presentation of the main lesion, absence of associated microcalcifications, shape, posterior features, and absence of calcifications on ultrasound were significantly associated with ypT0. CR in mammography, ultrasound, or MRI after NCT was also related to ypT0. By multivariate analysis, independent predictors of ypT0 were the triple-negative subtype [Odds ratio (OR), 4.23; 95% confidence interval (CI), 1.11–16.09] and CR in MRI after NCT (OR, 5.23; 95% CI, 1.53–17.85). Stratified analysis by breast cancer subtype demonstrated that MRI well predicted ypT0 in all subtypes except the HER2-positive subtype. In particular, of 40 triple-negative subtypes, 22 showed CR in MRI and 21 (95.5%) were ypT0 after NCT. Conclusion Among imaging modalities, breast MRI can potentially distinguish between ypT0 and ypTis after NCT, especially in patients with triple-negative breast cancer. This information can help clinicians evaluate tumor response to NCT and plan surgery for breast cancer patients of all subtypes except for those with HER2-enriched tumors after NCT.
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MESH Headings
- Adult
- Antineoplastic Agents/therapeutic use
- Breast/pathology
- Carcinoma/diagnosis
- Carcinoma/drug therapy
- Carcinoma/pathology
- Carcinoma, Intraductal, Noninfiltrating/diagnosis
- Carcinoma, Intraductal, Noninfiltrating/drug therapy
- Carcinoma, Intraductal, Noninfiltrating/pathology
- Chemotherapy, Adjuvant
- Diagnosis, Computer-Assisted
- False Positive Reactions
- Female
- Humans
- Image Processing, Computer-Assisted
- Magnetic Resonance Imaging
- Mammography
- Middle Aged
- Multivariate Analysis
- Neoadjuvant Therapy
- ROC Curve
- Retrospective Studies
- Treatment Outcome
- Triple Negative Breast Neoplasms/diagnosis
- Triple Negative Breast Neoplasms/drug therapy
- Triple Negative Breast Neoplasms/pathology
- Ultrasonography, Mammary
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Affiliation(s)
- Seho Park
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Hyun Yoon
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Joohyuk Sohn
- Division of Medical Oncology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyung Seok Park
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hee Jung Moon
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Min Jung Kim
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- * E-mail:
| | - Eun-Kyung Kim
- Department of Radiology, Research Institute of Radiological Science, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Seung Il Kim
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byeong-Woo Park
- Department of Surgery, Yonsei University College of Medicine, Seoul, Republic of Korea
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35
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Kim YS, Chang JM, Moon HG, Lee J, Shin SU, Moon WK. Residual Mammographic Microcalcifications and Enhancing Lesions on MRI After Neoadjuvant Systemic Chemotherapy for Locally Advanced Breast Cancer: Correlation with Histopathologic Residual Tumor Size. Ann Surg Oncol 2015; 23:1135-42. [PMID: 26628432 DOI: 10.1245/s10434-015-4993-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Indexed: 01/27/2023]
Abstract
PURPOSE To evaluate the accuracy of residual microcalcifications on mammogram (MG) in predicting the extent of the residual tumor after neoadjuvant systemic treatment (NST) in patients with locally advanced breast cancer and to evaluate factors affecting the accuracy of MG microcalcifications using magnetic resonance imaging (MRI) as a reference. METHODS The patients who underwent NST and showed suspicious microcalcifications on MG comprised our study population. Clinicopathologic and imaging (MG, MRI) findings were investigated. Agreement between image findings and pathology was assessed and factors affecting the discrepancy were analyzed. RESULTS Among 207 patients, 196 had residual invasive ductal carcinoma or ductal carcinoma-in-situ (mean size, 3.78 cm). The overall agreement of residual microcalcifications on MG predicting residual tumor extents was lower than MRI in all tumor subtypes (intraclass correlation coefficient [ICC] = 0.368 and 0.723, p < 0.0001). The agreement of residual MG microcalcifications and pathology was highest in HR(+)/HER2(+) tumors and lowest in the triple-negative tumors (ICC = 0.417 and 0.205, respectively). Multivariate linear regression analysis revealed that a size discrepancy between microcalcifications and histopathology was correlated with molecular subtype (p = 0.005). In HR(+)/HER2(-) and triple-negative subtypes, the mean extents of residual microcalcification were smaller than residual cancer, and overestimation of tumor extent was more frequent in HR(+)/HER2(+) and HR(-)/HER2(+) tumors. CONCLUSIONS The extent of microcalcifications on MG after NST showed an overall lower correlation with the extent of the pathologic residual tumor than enhancing lesions on MRI. The accuracy of residual tumor evaluation after NST with MG and MRI is affected by their molecular subtype.
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Affiliation(s)
- Young-Seon Kim
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - Jung Min Chang
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea.
| | - Hyeong-Gon Moon
- Department of Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - Joongyub Lee
- Division of Clinical Epidemiology, Medical Research Collaborating Center, Biomedical Research Institution, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - Sung Ui Shin
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - Woo Kyung Moon
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
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Holmes D, Colfry A, Czerniecki B, Dickson-Witmer D, Francisco Espinel C, Feldman E, Gallagher K, Greenup R, Herrmann V, Kuerer H, Malik M, Manahan E, O'Neill J, Patel M, Sebastian M, Wheeler A, Kass R. Performance and Practice Guideline for the Use of Neoadjuvant Systemic Therapy in the Management of Breast Cancer. Ann Surg Oncol 2015. [PMID: 26224406 DOI: 10.1245/s10434-015-4753-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
PURPOSE The American Society of Breast Surgeons (ASBrS) sought to provide an evidence-based guideline on the use of neoadjuvant systemic therapy (NST) in the management of clinical stage II and III invasive breast cancer. METHODS A comprehensive nonsystematic review was performed of selected peer-reviewed literature published since 2000. The Education Committee of the ASBrS convened to develop guideline recommendations. RESULTS A performance and practice guideline was prepared to outline the baseline assessment and perioperative management of patients with clinical stage II-III breast cancer under consideration for NST. RECOMMENDATIONS Preoperative or NST is emerging as an important initial strategy for the management of invasive breast cancer. From the surgeon's perspective, the primary goal of NST is to increase the resectability of locally advanced breast cancer, increase the feasibility of breast-conserving surgery and sentinel node biopsy, and decrease surgical morbidity. To ensure optimal patient selection and efficient patient care, the guideline recommends: (1) baseline breast and axillary imaging; (2) minimally invasive biopsies of breast and axillary lesions; (3) determination of tumor biomarkers; (4) systemic staging; (5) care coordination, including referrals to medical oncology, radiation oncology, plastic surgery, social work, and genetic counseling, if indicated; (6) initiation of NST; (7) post-NST breast and axillary imaging; and (8) decision for surgery based on extent of disease at presentation, patient choice, clinical response to NST, and genetic testing results, if performed.
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Affiliation(s)
- Dennis Holmes
- Department of Surgery, Los Angeles Center for Women's Health, Los Angeles, CA, USA,
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Jochelson MS, Lampen-Sachar K, Gibbons G, Dang C, Lake D, Morris EA, Morrow M. Do MRI and mammography reliably identify candidates for breast conservation after neoadjuvant chemotherapy? Ann Surg Oncol 2015; 22:1490-5. [PMID: 25777093 DOI: 10.1245/s10434-015-4502-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND Neoadjuvant chemotherapy (NAC) may allow breast-conserving therapy (BCT) in patients who require mastectomy at presentation. Breast MRI is more accurate than mammography in assessing treatment response, but combined test reliability in identifying BCT candidates after NAC is not well described. We evaluated whether post-NAC breast MRI alone and with mammography accurately identifies BCT candidates. METHODS In this retrospective study of 111 consecutive breast cancer patients receiving NAC, all had pre- and postchemotherapy MRI, followed by surgery. Posttreatment MRI and mammography results were correlated with surgical outcomes and pathologic response. RESULTS Fifty-one of 111 (46 %) patients presented with multicentric or inflammatory breast cancer and were not BCT candidates. The remaining 60 (54 %) were considered BCT candidates after downstaging (mean age: 47 years). All 60 had at least a partial response to NAC and were suitable for BCT on MRI after NAC. Forty-five of 60 (75 %) underwent lumpectomy; 15 of 60 (25 %) chose mastectomy. Forty-one of 45 (91 %) of lumpectomies were successful; 4 of 45 (9 %) required mastectomy. Twelve of 15 (80 %) patients choosing mastectomy could have undergone BCT based on pathology; 3 of 15 (20 %) did require mastectomy. Two of these three patients had extensive microcalcifications on mammogram, indicating the need for mastectomy despite MRI suitability for BCS. MRI alone correctly predicted BCS in 53 of 60 (88 %) patients. MRI plus mammography was correct in 55 of 60 (92 %), although only 9 of 45 (20 %) BCT patients and 4 of 15 (27 %) potentially conservable mastectomy patients had complete pathologic responses. CONCLUSIONS Posttreatment MRI plus mammography is an accurate method to determine whether BCT is possible after NAC is given to downstage disease.
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Affiliation(s)
- Maxine S Jochelson
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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Abstract
Neoadjuvant chemotherapy (NAC) involves administration of chemotherapeutic agents to patients with newly diagnosed breast cancer prior to definitive surgical treatment. Assessment of disease response to chemotherapeutic agents in vivo prior to any surgical intervention is necessary as medical oncologists are commonly tailoring or changing therapy during NAC based on response. It can also maximize the pathologic complete response (pCR) rate, resulting in more women undergoing breast conservation rather than mastectomy. Although some studies show a pCR to NAC in only 13-26 % of women, recent studies have shown higher pCR rates, especially for HER2-positive disease treated with targeted anti-HER2 therapy. Thus, accurate imaging tools for quantifying disease response are critical in the evaluation and management of patients undergoing NAC. There is currently no standard imaging method for monitoring response to therapy. Response to therapy tends to vary by tumor subtype and can be accurately assessed on imaging. We review the role of imaging before and after neoadjuvant therapy and discuss the advantages and limitations of currently available modalities, including mammography, ultrasonography, magnetic resonance imaging, and nuclear imaging.
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Affiliation(s)
- Vandana Dialani
- Division of Breast Imaging, Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
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