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Heitkamp A, Madesta F, Amberg S, Wahaj S, Schröder T, Bechstein M, Meyer L, Broocks G, Hanning U, Gauer T, Werner R, Fiehler J, Gellißen S, Kniep HC. Discordant and Converting Receptor Expressions in Brain Metastases from Breast Cancer: MRI-Based Non-Invasive Receptor Status Tracking. Cancers (Basel) 2023; 15:cancers15112880. [PMID: 37296843 DOI: 10.3390/cancers15112880] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/15/2023] [Accepted: 05/18/2023] [Indexed: 06/12/2023] Open
Abstract
Discordance and conversion of receptor expressions in metastatic lesions and primary tumors is often observed in patients with brain metastases from breast cancer. Therefore, personalized therapy requires continuous monitoring of receptor expressions and dynamic adaptation of applied targeted treatment options. Radiological in vivo techniques may allow receptor status tracking at high frequencies at low risk and cost. The present study aims to investigate the potential of receptor status prediction through machine-learning-based analysis of radiomic MR image features. The analysis is based on 412 brain metastases samples from 106 patients acquired between 09/2007 and 09/2021. Inclusion criteria were as follows: diagnosed cerebral metastases from breast cancer; histopathology reports on progesterone (PR), estrogen (ER), and human epidermal growth factor 2 (HER2) receptor status; and availability of MR imaging data. In total, 3367 quantitative features of T1 contrast-enhanced, T1 non-enhanced, and FLAIR images and corresponding patient age were evaluated utilizing random forest algorithms. Feature importance was assessed using Gini impurity measures. Predictive performance was tested using 10 permuted 5-fold cross-validation sets employing the 30 most important features of each training set. Receiver operating characteristic areas under the curves of the validation sets were 0.82 (95% confidence interval [0.78; 0.85]) for ER+, 0.73 [0.69; 0.77] for PR+, and 0.74 [0.70; 0.78] for HER2+. Observations indicate that MR image features employed in a machine learning classifier could provide high discriminatory accuracy in predicting the receptor status of brain metastases from breast cancer.
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Affiliation(s)
- Alexander Heitkamp
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Frederic Madesta
- Department of Computational Neuroscience, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Sophia Amberg
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Schohla Wahaj
- Department of Radiotherapy and Radiation Oncology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Tanja Schröder
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Matthias Bechstein
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Lukas Meyer
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Gabriel Broocks
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Uta Hanning
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Tobias Gauer
- Department of Radiotherapy and Radiation Oncology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - René Werner
- Department of Computational Neuroscience, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
- Center for Biomedical Artificial Intelligence (bAIome), University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Jens Fiehler
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Susanne Gellißen
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
| | - Helge C Kniep
- Department of Diagnostic and Interventional Neuroradiology, University Medical Center Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany
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Ricci-Cabello I, Carvallo-Castañeda D, Vásquez-Mejía A, Alonso-Coello P, Saz-Parkinson Z, Parmelli E, Morgano GP, Rigau D, Solà I, Neamtiu L, Niño-de-Guzmán E. Characteristics and impact of interventions to support healthcare providers' compliance with guideline recommendations for breast cancer: a systematic literature review. Implement Sci 2023; 18:17. [PMID: 37217955 DOI: 10.1186/s13012-023-01267-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/14/2023] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Breast cancer clinical practice guidelines (CPGs) offer evidence-based recommendations to improve quality of healthcare for patients. Suboptimal compliance with breast cancer guideline recommendations remains frequent, and has been associated with a decreased survival. The aim of this systematic review was to characterize and determine the impact of available interventions to support healthcare providers' compliance with CPGs recommendations in breast cancer healthcare. METHODS We searched for systematic reviews and primary studies in PubMed and Embase (from inception to May 2021). We included experimental and observational studies reporting on the use of interventions to support compliance with breast cancer CPGs. Eligibility assessment, data extraction and critical appraisal was conducted by one reviewer, and cross-checked by a second reviewer. Using the same approach, we synthesized the characteristics and the effects of the interventions by type of intervention (according to the EPOC taxonomy), and applied the GRADE framework to assess the certainty of evidence. RESULTS We identified 35 primary studies reporting on 24 different interventions. Most frequently described interventions consisted in computerized decision support systems (12 studies); educational interventions (seven), audit and feedback (two), and multifaceted interventions (nine). There is low quality evidence that educational interventions targeted to healthcare professionals may improve compliance with recommendations concerning breast cancer screening, diagnosis and treatment. There is moderate quality evidence that reminder systems for healthcare professionals improve compliance with recommendations concerning breast cancer screening. There is low quality evidence that multifaceted interventions may improve compliance with recommendations concerning breast cancer screening. The effectiveness of the remaining types of interventions identified have not been evaluated with appropriate study designs for such purpose. There is very limited data on the costs of implementing these interventions. CONCLUSIONS Different types of interventions to support compliance with breast cancer CPGs recommendations are available, and most of them show positive effects. More robust trials are needed to strengthen the available evidence base concerning their efficacy. Gathering data on the costs of implementing the proposed interventions is needed to inform decisions about their widespread implementation. TRIAL REGISTRATION CRD42018092884 (PROSPERO).
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Affiliation(s)
- Ignacio Ricci-Cabello
- Balearic Islands Health Research Institute (IdISBa), Palma, Spain
- Primary Care Research Unit of Mallorca, Balearic Islands Health Service, Palma, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | | | - Adrián Vásquez-Mejía
- Facultad de Medicina Humana, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Pablo Alonso-Coello
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain.
- Iberoamerican Cochrane Centre-Department of Clinical Epidemiology and Public Health, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain.
| | | | - Elena Parmelli
- European Commission, Joint Research Centre (JRC), Ispra, Italy.
| | | | - David Rigau
- Iberoamerican Cochrane Centre-Department of Clinical Epidemiology and Public Health, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Ivan Solà
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Iberoamerican Cochrane Centre-Department of Clinical Epidemiology and Public Health, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
| | - Luciana Neamtiu
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Ena Niño-de-Guzmán
- Iberoamerican Cochrane Centre-Department of Clinical Epidemiology and Public Health, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain
- Cancer Prevention and Control Programme, Catalan Institute of Oncology, IDIBELL, Hospitalet de Llobregat, Barcelona, Spain
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Cserni G, Francz M, Járay B, Kálmán E, Kovács I, Krenács T, Tóth E, Udvarhelyi N, Vass L, Vörös A, Krivokuca A, Kajo K, Kajová Macháleková K, Kulka J. Pathological Diagnosis, Work-Up and Reporting of Breast Cancer 1st Central-Eastern European Professional Consensus Statement on Breast Cancer. Pathol Oncol Res 2022; 28:1610373. [PMID: 35845921 PMCID: PMC9284216 DOI: 10.3389/pore.2022.1610373] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/29/2022] [Indexed: 12/18/2022]
Abstract
This text is based on the recommendations accepted by the 4th Hungarian Consensus Conference on Breast Cancer, modified on the basis of the international consultation and conference within the frames of the Central-Eastern European Academy of Oncology. The recommendations cover non-operative, intraoperative and postoperative diagnostics, determination of prognostic and predictive markers and the content of cytology and histology reports. Furthermore, they address some specific issues such as the current status of multigene molecular markers, the role of pathologists in clinical trials and prerequisites for their involvement, and some remarks about the future.
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Affiliation(s)
- Gábor Cserni
- Department of Pathology, Bács-Kiskun County Teaching Hospital, Kecskemét, Hungary
- Institute of Pathology, University of Szeged, Szeged, Hungary
- *Correspondence: Gábor Cserni,
| | - Monika Francz
- Department of Pathology, Szabolcs-Szatmár-Bereg County Hospitals and University Teaching Hospital, “Jósa András” Teaching Hospital, Nyíregyháza, Hungary
| | | | - Endre Kálmán
- Institute of Pathology, University of Pécs, Pécs, Hungary
| | - Ilona Kovács
- Department of Pathology, University of Debrecen, “Kenézy Gyula” University Hospital, Debrecen, Hungary
| | - Tibor Krenács
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Erika Tóth
- Department of Pathology, National Institute of Oncology, Budapest, Hungary
| | - Nóra Udvarhelyi
- Department of Pathology, National Institute of Oncology, Budapest, Hungary
| | - László Vass
- Department of Pathology, Pest County “Flór Ferenc” University Teaching Hospital, Kistarcsa, Hungary
| | - András Vörös
- Institute of Pathology, University of Szeged, Szeged, Hungary
| | - Ana Krivokuca
- Institute for Oncology and Radiology of Serbia, Belgrade, Serbia
| | - Karol Kajo
- Department of Pathology, St. Elisabeth Cancer Institute, Bratislava, Slovakia
| | | | - Janina Kulka
- Department of Pathology, Forensic and Insurance Medicine, Semmelweis University, Budapest, Hungary
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Marazzi F, Barone R, Masiello V, Magri V, Mulè A, Santoro A, Cacciatori F, Boldrini L, Franceschini G, Moschella F, Naso G, Tomao S, Gambacorta MA, Mantini G, Masetti R, Smaniotto D, Valentini V. Oncotype DX Predictive Nomogram for Recurrence Score Output: The Novel System ADAPTED01 Based on Quantitative Immunochemistry Analysis. Clin Breast Cancer 2020; 20:e600-e611. [PMID: 32565110 DOI: 10.1016/j.clbc.2020.04.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 12/22/2022]
Abstract
PURPOSE Oncotype DX (ODX) predicts breast cancer recurrence risk, guiding the choice of adjuvant treatment. In many countries, access to the test is not always available. We used correlation between phenotypical tumor characteristics, quantitative classical immunohistochemistry (IHC), and recurrence score (RS) assessed by ODX to develop a decision supporting system for clinical use. PATIENTS AND METHODS Breast cancer patients who underwent ODX testing between 2014 and 2018 were retrospectively included in the study. The data selected for analysis were age, menopausal status, and pathologic and IHC features. IHC was performed with standardized quantitative methods. The data set was split into two subsets: 70% for the training set and 30% for the internal validation set. Statistically significant features were included in logistic models to predict RS ≤ 25 or ≤ 20. Another set was used for external validation to test reproducibility of prediction models. RESULTS The internal set included 407 patients. Mean (range) age was 53.7 (31-80) years, and 222 patients (54.55%) were > 50 years old. ODX results showed 67 patients (16.6%) had RS between 0 and 10, 272 patients between 11 and 25 (66.8%), and 68 patients > 26 (16.6%). Logistic regression analysis showed that RS score (for threshold ≤ 25) was significantly associated with estrogen receptor (P = .004), progesterone receptor (P < .0001), and Ki-67 (P < .0001). Generalized linear regression resulted in a model that had an area under the receiver operating characteristic curve (AUC) of 92.2 (sensitivity 84.2%, specificity 80.1%) and that was well calibrated. The external validation set (183 patients) analysis confirmed the model performance, with an AUC of 82.3 and a positive predictive value of 91%. A nomogram was generated for further prospective evaluation to predict RS ≤ 25. CONCLUSION RS was related to quantitative IHC in patients with RS ≤ 25, with a good performance of the statistical model in both internal and external validation. A nomogram for enhancing clinical approach in a cost-effective manner was developed. Prospective studies must test this application in clinical practice.
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Affiliation(s)
- Fabio Marazzi
- UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy
| | | | - Valeria Masiello
- UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy.
| | - Valentina Magri
- Breast Unit, Division of Medical Oncology, Department of Radiological Oncological and Pathological Sciences, "Sapienza" University of Rome, Rome, Italy
| | - Antonino Mulè
- UOC di Anatomia Patologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy
| | - Angela Santoro
- UOC di Anatomia Patologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy
| | - Federica Cacciatori
- UOC di Anatomia Patologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy
| | - Luca Boldrini
- UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy
| | - Gianluca Franceschini
- UOC di Chirurgia Senologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy; Università Cattolica del Sacro Cuore, Istituto di Radiologia, Rome, Italy
| | - Francesca Moschella
- UOC di Chirurgia Senologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy
| | - Giuseppe Naso
- Breast Unit, Division of Medical Oncology, Department of Radiological Oncological and Pathological Sciences, "Sapienza" University of Rome, Rome, Italy
| | - Silverio Tomao
- Breast Unit, Division of Medical Oncology, Department of Radiological Oncological and Pathological Sciences, "Sapienza" University of Rome, Rome, Italy
| | - Maria Antonietta Gambacorta
- UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy; Università Cattolica del Sacro Cuore, Istituto di Radiologia, Rome, Italy
| | - Giovanna Mantini
- UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy; Università Cattolica del Sacro Cuore, Istituto di Radiologia, Rome, Italy
| | - Riccardo Masetti
- UOC di Chirurgia Senologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy; Università Cattolica del Sacro Cuore, Istituto di Radiologia, Rome, Italy
| | - Daniela Smaniotto
- UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy; Università Cattolica del Sacro Cuore, Istituto di Radiologia, Rome, Italy
| | - Vincenzo Valentini
- UOC di Radioterapia Oncologica, Fondazione Policlinico Universitario "A. Gemelli" IRCCS, Dipartimento di Scienze della Salute della Donna e del Bambino e di Sanità Pubblica, Rome, Italy; Università Cattolica del Sacro Cuore, Istituto di Radiologia, Rome, Italy
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Lebeau A, Denkert C, Sinn P, Schmidt M, Wöckel A. Update der S3-Leitlinie Mammakarzinom. DER PATHOLOGE 2019; 40:185-198. [DOI: 10.1007/s00292-019-0578-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Freedman O, Fletcher G, Gandhi S, Mates M, Dent S, Trudeau M, Eisen A. Adjuvant endocrine therapy for early breast cancer: a systematic review of the evidence for the 2014 Cancer Care Ontario systemic therapy guideline. Curr Oncol 2015; 22:S95-S113. [PMID: 25848344 PMCID: PMC4381796 DOI: 10.3747/co.22.2326] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Cancer Care Ontario's Program in Evidence-Based Care (pebc) recently created an evidence-based consensus guideline on the systemic treatment of early breast cancer. The evidence for the guideline was compiled using a systematic review to answer the question "What is the optimal systemic therapy for patients with early-stage, operable breast cancer, when patient and disease factors are considered?" The question was addressed in three parts: cytotoxic chemotherapy, endocrine treatment, and her2 (human epidermal growth factor receptor 2)-targeted therapy. METHODS For the systematic review, the literature in the medline and embase databases was searched for the period January 2008 to May 2014. The Standards and Guidelines Evidence directory of cancer guidelines and the Web sites of major oncology guideline organizations were also searched. The basic search terms were "breast cancer" and "systemic therapy" (chemotherapy, endocrine therapy, targeted agents, ovarian suppression), and results were limited to randomized controlled trials (rcts), guidelines, systematic reviews, and meta-analyses. RESULTS Several hundred documents that met the inclusion criteria were retrieved. Meta-analyses from the Early Breast Cancer Trialists' Collaborative Group encompassed many of the rcts found. Several additional studies that met the inclusion criteria were retained, as were other guidelines and systematic reviews. SUMMARY The results of the systematic review constitute a comprehensive compilation of high-level evidence, which was the basis for the 2014 pebc guideline on systemic therapy for early breast cancer. The review of the evidence for systemic endocrine therapy (adjuvant tamoxifen, aromatase inhibitors, and ovarian ablation and suppression) is presented here; the evidence for chemotherapy and her2-targeted treatment-and the final clinical practice recommendations-are presented separately in this supplement.
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Affiliation(s)
| | - G.G. Fletcher
- Program in Evidence-Based Care, Cancer Care Ontario; and Department of Oncology, McMaster University, Hamilton, ON
| | - S. Gandhi
- Sunnybrook Health Science Centre, Toronto, ON
| | - M. Mates
- Cancer Centre of Southeastern Ontario, Kinston General Hospital, and Queen’s University, Kingston, ON
| | - S.F. Dent
- The Ottawa Hospital Cancer Centre and University of Ottawa, Ottawa, ON
| | | | - A. Eisen
- Durham Regional Cancer Centre, Oshawa, ON
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Schmitt F, Vielh P. Fine-needle aspiration cytology samples: a good source of material for evaluating biomarkers in breast cancer. Histopathology 2014; 66:314-5. [DOI: 10.1111/his.12439] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Fernando Schmitt
- Department of Laboratory Medicine and Pathobiology; Faculty of Medicine; University of Toronto; Toronto ON Canada
| | - Philippe Vielh
- Department of Pathology; University Health Network; Toronto ON Canada
- Department of Medical Biology and Pathology; Translational Research Laboratory and Biobank; Gustave Roussy Comprehensive Cancer Centre; Villejuif France
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8
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Sato M, Kojima M, Nagatsuma AK, Nakamura Y, Saito N, Ochiai A. Optimal fixation for total preanalytic phase evaluation in pathology laboratories. A comprehensive study including immunohistochemistry, DNA, and mRNA assays. Pathol Int 2014; 64:209-16. [DOI: 10.1111/pin.12164] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 04/02/2014] [Indexed: 01/01/2023]
Affiliation(s)
- Masaaki Sato
- Division of Pathology; Research Center for Innovative Oncology; National Cancer Center; Kashiwa Chiba Japan
| | - Motohiro Kojima
- Division of Pathology; Research Center for Innovative Oncology; National Cancer Center; Kashiwa Chiba Japan
| | - Akiko Kawano Nagatsuma
- Division of Pathology; Research Center for Innovative Oncology; National Cancer Center; Kashiwa Chiba Japan
| | - Yuka Nakamura
- Division of Pathology; Research Center for Innovative Oncology; National Cancer Center; Kashiwa Chiba Japan
| | - Norio Saito
- Colorectal and Pelvic Surgery Division; National Cancer Center Hospital East; Kashiwa Chiba Japan
| | - Atsushi Ochiai
- Division of Pathology; Research Center for Innovative Oncology; National Cancer Center; Kashiwa Chiba Japan
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Stålhammar G, Rosin G, Fredriksson I, Bergh J, Hartman J. Low concordance of biomarkers in histopathological and cytological material from breast cancer. Histopathology 2014; 64:971-80. [PMID: 24320941 DOI: 10.1111/his.12344] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 12/04/2013] [Indexed: 12/11/2022]
Abstract
AIMS The aim of this study was to investigate in primary breast cancer the congruency of routine clinical predictive biomarker evaluations, including ER, PR and Ki67, obtained using immunocytochemistry (ICC) and immunohistochemistry (IHC). METHODS AND RESULTS Clinicopathological data were collected on all women diagnosed with primary breast cancer at Karolinska University Hospital in 2011. A total of 346 patients were included in a retrospective paired comparison of predictive biomarker evaluations on direct smear ICC and IHC. This showed a low congruency between findings with the two methods, especially evident for Ki67 (κ = 0.35-0.42). By suggested adjustments to ICC cut-offs, we managed to improve the inter-rater agreement of Ki67 classification slightly to κ = 0.46. CONCLUSIONS Our findings suggest that routine clinical ICC and IHC evaluations of predictive biomarkers produce discordant results. Consequently, basing therapeutic decisions on cytology with cut-offs defined for IHC induces a risk that patients will receive suboptimal therapy. However, our analysis shows that local adjustments to biomarker cut-off levels may improve congruency and increase the probability of correct classifications.
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Affiliation(s)
- Gustav Stålhammar
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden; Department of Clinical Pathology, Karolinska University Hospital, Stockholm, Sweden
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Chen ZW, Neufeld H, Copete MA, Garratt J, Gilks CB, Torlakovic EE. Academic and nonacademic laboratories perform equally on CIQC immunohistochemistry proficiency testing. Am J Clin Pathol 2013; 140:55-60. [PMID: 23765534 DOI: 10.1309/ajcphbl59mwbvyrd] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
OBJECTIVES To test whether academic centers (ACs) are more successful than nonacademic centers (NACs) in immunohistochemistry (IHC) external quality assessment challenges in the Canadian Immunohistochemistry Quality Control (CIQC) program. METHODS Results of 9 CIQC challenges for breast cancer marker (BM) and various non-breast cancer marker (NBM) tests were examined. Success rates were compared between AC/NAC laboratories and those located in small or large cities. Performance was also correlated with annual IHC case volumes. RESULTS There was no statistically significant difference in performance in any of the comparisons. However, overall performance on BM was significantly better (P < .0001, t test) than on NBM tests regardless of AC/NAC nature or city size. The mean failure rate on NBM was approximately twice that of BM tests. CONCLUSION Our results suggest that recent emphasis on breast hormone IHC quality assurance has led to improved test quality.
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Affiliation(s)
- Zhongchuan Will Chen
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Heather Neufeld
- Department of Pathology and Laboratory Medicine, College of Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Maria A. Copete
- Department of Oral Pathology, College of Dentistry, University of Saskatchewan, Saskatoon, Canada
| | - John Garratt
- Department of Pathology, Lions Gate Hospital, Vancouver, Canada
| | - C. Blake Gilks
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - Emina E. Torlakovic
- Department of Laboratory Hematology, University Health Network, University of Toronto, Toronto, Canada
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Abstract
Hormone receptor expression is a critical part of the pathological evaluation of breast cancer. Underpinning not only therapeutic decisions and prognosis, oestrogen receptor (ER) and progesterone receptor (PR) have been a consistent thread in the expanding knowledge of breast cancer. Accurate laboratory testing requires care and precision in preanalytical, analytical and postanalytical processes. In this report, postanalytical issues of pathologist interpretation of ER and PR status in breast cancer are discussed. Apart from key elements of the actual pathological assessment, it is important to realise that there are additional factors that can impact on sensitivity, specificity and dynamic range of hormone receptor expression as rendered on pathology. These include tumour characteristics and heterogeneity, biological changes of tumour progression and interacting molecules, all of which can influence the degree of hormone responsiveness in a particular individual with hormone receptor-positive breast cancer. There is a need to ensure participation in quality assurance programmes and slide exchanges, as well as to constantly keep abreast of emerging data on clinical trials and outcomes of hormone receptor-positive breast cancer.
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Affiliation(s)
- Ming Lee
- Department of Pathology, Singapore General Hospital, Singapore
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