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Yoshikawa AL, Omura T, Takahashi-Kanemitsu A, Susaki EA. Blueprints from plane to space: outlook of next-generation three-dimensional histopathology. Cancer Sci 2024; 115:1029-1038. [PMID: 38316137 PMCID: PMC11006986 DOI: 10.1111/cas.16095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Revised: 01/02/2024] [Accepted: 01/16/2024] [Indexed: 02/07/2024] Open
Abstract
Here, we summarize the literature relevant to recent advances in three-dimensional (3D) histopathology in relation to clinical oncology, highlighting serial sectioning, tissue clearing, light-sheet microscopy, and digital image analysis with artificial intelligence. We look forward to a future where 3D histopathology expands our understanding of human pathophysiology and improves patient care through cross-disciplinary collaboration and innovation.
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Affiliation(s)
- Akira Leon Yoshikawa
- Department of Biochemistry and Systems Biomedicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Pathology Informatics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
- Department of Pathology, Kameda Medical Center, Chiba, Japan
| | - Takaki Omura
- Department of Biochemistry and Systems Biomedicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Neurosurgery and Neuro-Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Atsushi Takahashi-Kanemitsu
- Department of Biochemistry and Systems Biomedicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Etsuo A Susaki
- Department of Biochemistry and Systems Biomedicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
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2
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Belleannée G. [Encapsulated follicular carcinoma]. Ann Pathol 2024; 44:108-113. [PMID: 38388329 DOI: 10.1016/j.annpat.2024.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 02/24/2024]
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3
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Stojanov IJ, Mete O, Asa SL. Obstacles to Tumor Capsule Assessment in Noninvasive Follicular Thyroid Neoplasm with Papillary-Like Nuclear Features (NIFTP). Endocr Pathol 2023; 34:484-486. [PMID: 37979079 DOI: 10.1007/s12022-023-09791-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Affiliation(s)
- Ivan J Stojanov
- Department of Pathology, Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH, USA.
| | - Ozgur Mete
- Department of Pathology, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Sylvia L Asa
- Department of Pathology, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH, USA
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4
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Wong KS, Barletta JA. Challenges in Encapsulated Follicular-Patterned Tumors: How Much Is Enough? Evaluation of Nuclear Atypia, Architecture, and Invasion. Surg Pathol Clin 2023; 16:27-44. [PMID: 36739165 DOI: 10.1016/j.path.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Thyroid pathology is notoriously fraught with high interobserver variability, and follicular-patterned tumors are among some of the most challenging to assess accurately and reproducibly. Given that encapsulated or well-circumscribed follicular-patterned tumors often have similar molecular profiles, that is, frequent RAS or RAS-like alterations, the diagnosis usually relies on histopathologic examination alone. Unfortunately, many of the features that are used for diagnosis and prognosis of these tumors have long been controversial and frequently debated topics, both due to their subjectivity and their evolving (or not yet resolved) definitions. In more recent years, the introduction of noninvasive follicular thyroid neoplasm with papillary-like nuclear features has added further complexity to this discussion. In particular, the criteria and significance of nuclear features of papillary thyroid carcinoma, architectural patterns, and invasive growth still pose significant diagnostic challenges and confusion. This review explores some of the challenges in evaluating encapsulated follicular-patterned tumors, focusing on those histologic elements.
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Affiliation(s)
- Kristine S Wong
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Justine A Barletta
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
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5
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Papachristos AJ, Bin Mohamed Ebrahim ME, Fuchs TL, Gill AJ, Delbridge L, Serpell J, Sidhu SB. Beware the recurrent 'benign' multinodular goitre. ANZ J Surg 2023; 93:907-910. [PMID: 36852905 DOI: 10.1111/ans.18355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/09/2023] [Accepted: 02/15/2023] [Indexed: 03/01/2023]
Abstract
BACKGROUND The diagnosis of follicular carcinoma is often difficult to make on pathological analysis, as the histological distinction from follicular adenoma rests solely on the presence of capsular or vascular invasion. Even on retrospective review of the histopathology after the disease biology has declared itself as malignant, the pathological diagnosis of malignancy may not be possible to make. METHODS We report three cases in which patients were initially diagnosed with benign follicular lesions, but re-presented with locally recurrent disease and a subsequent malignant disease course. RESULTS We describe a rare entity of follicular thyroid carcinoma that demonstrates a locally recurrent and eventually metastatic disease phenotype, despite persistently benign pathological findings. CONCLUSION We highlight that if local recurrence occurs in discrete anatomical tissue planes, or in the thyroid bed following open total thyroidectomy for 'benign multinodular goitre', the possibility of this rare presentation of follicular thyroid carcinoma should be considered.
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Affiliation(s)
- Alexander J Papachristos
- Endocrine Surgical Unit, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia.,Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
| | | | - Talia L Fuchs
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia.,NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Anthony J Gill
- Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia.,NSW Health Pathology, Department of Anatomical Pathology, Royal North Shore Hospital, Sydney, New South Wales, Australia.,Cancer Diagnosis and Pathology Group, Kolling Institute of Medical Research, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Leigh Delbridge
- Endocrine Surgical Unit, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia
| | - Jonathan Serpell
- Monash University Endocrine Surgery Unit, Alfred Hospital, Melbourne, Victoria, Australia.,Department of Surgery, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Stan B Sidhu
- Endocrine Surgical Unit, Royal North Shore Hospital, Northern Sydney Local Health District, Sydney, New South Wales, Australia.,Northern Clinical School, Sydney Medical School, Faculty of Medicine and Health, University of Sydney, Sydney, New South Wales, Australia
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6
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Wu Q, Qu Y, Li Y, Liu Y, Shen J, Wang Y. Logistic regression analysis of contrast-enhanced ultrasound and conventional ultrasound of follicular thyroid carcinoma and follicular adenoma. Gland Surg 2021; 10:2890-2900. [PMID: 34804877 DOI: 10.21037/gs-21-535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 09/22/2021] [Indexed: 11/06/2022]
Abstract
Background Follicular thyroid carcinoma (FTC) is prone to recurrence and hematogenous metastasis, preoperative accurate diagnosis is still needed to help clinicians select the best surgical methods to improve the prognosis of patients. The aim of this study was to find specific conventional ultrasound (US) and contrast-enhanced ultrasound (CEUS) characteristics of FTC and to explore their diagnostic value in the differential diagnosis between FTC and follicular adenoma (FA). Methods This retrospective study included 258 thyroid follicular neoplasms (172 FAs and 86 FTCs) in 244 consecutive patients who underwent preoperative conventional US, and 72 of them underwent both conventional US and CEUS. Sonograms were reviewed in consensus by two experienced radiologists for various conventional US and CEUS features. Multivariate logistic regression analysis was performed to determine independent risk factors for FTC. Results Independent risk factors of conventional US for FTC were heterogenicity (OR =7.477, 95% CI: 2.848-19.629), unevenly thick halo (OR =5.643, 95% CI: 3.234-9.848) and calcifications (OR =1.748, 95% CI: 1.098-2.783). While independent risk factors determined with the combination of CEUS and conventional US were unevenly thick halo (OR =5.770, 95% CI: 1.310-25.409) and absent or irregular rim enhancement (OR =27.000, 95% CI: 2.445-298.178). The area under the receiver operating characteristic curve of the final two logistic regression models was 0.835 and 0.838. Conclusions Conventional US is an efficient diagnostic tool in the differential diagnosis of FTC and FA to help clinicians in making appropriate decisions while CEUS failed to provide additional diagnostic value in the study, thus the value of CEUS remains to be verified by further studies with larger sample sizes.
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Affiliation(s)
- Qiong Wu
- Department of Ultrasound in Medicine, Affiliated Sixth People's Hospital of Shanghai Jiao Tong University, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Yanhui Qu
- Department of Ultrasound in Medicine, Affiliated Sixth People's Hospital of Shanghai Jiao Tong University, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Yi Li
- Department of Ultrasound in Medicine, Affiliated Sixth People's Hospital of Shanghai Jiao Tong University, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Yilun Liu
- Department of Ultrasound in Medicine, Affiliated Sixth People's Hospital of Shanghai Jiao Tong University, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Jian Shen
- Department of Ultrasound in Medicine, Affiliated Sixth People's Hospital of Shanghai Jiao Tong University, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
| | - Yan Wang
- Department of Ultrasound in Medicine, Affiliated Sixth People's Hospital of Shanghai Jiao Tong University, Shanghai Institute of Ultrasound in Medicine, Shanghai, China
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Shindo H, Kakudo K, Inomata K, Mori Y, Takahashi H, Satoh S, Yamashita H. Additional Tissue Sampling Trials Did Not Change Our Thyroid Practice. Cancers (Basel) 2021; 13:cancers13061270. [PMID: 33809394 PMCID: PMC7999341 DOI: 10.3390/cancers13061270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/25/2021] [Accepted: 03/10/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Some studies have suggested that the use of additional tissue blocks to diagnose follicular thyroid carcinoma (FTC) could increase the accuracy of diagnosis and improve prognosis, and entire capsule sampling was recommended for a definitive diagnosis of borderline thyroid tumors in 2016. We conducted a study in 2016 to examine whether additional tissue sampling of the encapsulated follicular tumor increases the diagnosis of malignant cases in our patient cohort. Furthermore, the diagnosis was reclassified according to the 4th edition of the World Health Organization’s classification system. The additional tissue sampling only had a slight impact on our thyroid practice and resulted in no benefits to the patient; therefore, we decided to cease it. Abstract This study aimed to determine whether additional tissue sampling of encapsulated thyroid nodules would increase the frequency of follicular thyroid carcinoma (FTC) diagnoses. We examined thyroid tissue specimens from 86 patients suspected of FTC (84.9% female; mean age, 49.0 ± 17.8 years). The number of tissue blocks created for pathological assessments ranged from 3 to 20 (mean, 9.1 ± 4.1); the numbers in the previous method recommended by the Japanese General Rules for the Description of Thyroid Cancer and additional blocks ranged from 1 to 12 (mean, 6.0 ± 2.8) and from 1 to 8 (mean, 3.1 ± 2.0), respectively. The additional blocks were subsequently examined to determine whether any diagnoses changed from those based on the previous method. Five patients were diagnosed with FTC using the previous method; however, additional tissue blocks led to the diagnosis of FTC in 6 patients, as 1 diagnosis was revised from follicular adenoma to FTC. It has been reported that increasing the number of tissue blocks used for pathological assessments can increase the frequency of FTC diagnoses; however, this was not clinically significant in thyroid carcinoma, which requires completion thyroidectomy and radioactive iodine treatment. It resulted in no benefits to the patient because all minimally invasive FTCs, follicular tumors of uncertain malignant potential (FT-UMP), and follicular adenomas are treated with lobectomy alone in Japan. Additional tissue sampling only had a slight impact on our thyroid practice; therefore, we decided to cease it.
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Affiliation(s)
- Hisakazu Shindo
- Department of Surgery, Yamashita Thyroid Hospital, Fukuoka 812-0034, Japan; (Y.M.); (H.T.); (S.S.); (H.Y.)
- Correspondence: ; Tel.: +81-9-2281-1300
| | - Kennichi Kakudo
- Thyroid Disease Center, Department of Pathology, City General Hospital, Osaka 594-0073, Japan;
| | - Keiko Inomata
- Department of Pathology, Yamashita Thyroid Hospital, Fukuoka 812-0034, Japan;
| | - Yusuke Mori
- Department of Surgery, Yamashita Thyroid Hospital, Fukuoka 812-0034, Japan; (Y.M.); (H.T.); (S.S.); (H.Y.)
| | - Hiroshi Takahashi
- Department of Surgery, Yamashita Thyroid Hospital, Fukuoka 812-0034, Japan; (Y.M.); (H.T.); (S.S.); (H.Y.)
| | - Shinya Satoh
- Department of Surgery, Yamashita Thyroid Hospital, Fukuoka 812-0034, Japan; (Y.M.); (H.T.); (S.S.); (H.Y.)
| | - Hiroyuki Yamashita
- Department of Surgery, Yamashita Thyroid Hospital, Fukuoka 812-0034, Japan; (Y.M.); (H.T.); (S.S.); (H.Y.)
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8
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Abstract
Oncocytes are cells that have abundant eosinophilic cytoplasm due to the accumulation of mitochondria; they are also known as oxyphils. In the thyroid they have been called Hürthle cells but this is a misnomer, since Hürthle described C cells; for this reason, we propose the use of "oncocyte" as a scientific term rather than an incorrect eponym. Oncocytic change occurs in nontumorous thyroid disorders, in benign and malignant tumors of thyroid follicular cells, in tumors composed of thyroid C cells, and intrathyroidal parathyroid proliferations as well as in metastatic lesions. The morphology of primary oncocytic thyroid tumors is similar to that of their non-oncocytic counterparts but also is complicated by the cytologic features of these cells that include both abundant eosinophilic cytoplasm and large cherry red nucleoli. The molecular alterations in oncocytic thyroid tumors echo those of their non-oncocytic counterparts but in addition feature mitochondrial DNA mutations as well as chromosomal gains and losses. In this review we emphasize the importance of recognition of the spectrum of oncocytic thyroid pathology. The cell of origin, morphologic features including architecture, nuclear atypia and invasive growth, as well as high grade features such as mitoses and necrosis, enable accurate classification of these lesions. The molecular alterations underlying the pathological entity are associated with genetic alterations associated with oncocytic change. The arbitrary cut-off of 75% oncocytic change to classify a lesion as an oncocytic variant brings another complexity to the classification scheme of tumors that frequently have mixed oncocytic and non-oncocytic components. This controversial and often confusing area of thyroid pathology requires thoughtful and cautious investigation to clarify accurate diagnosis, prognosis and prediction for patients with oncocytic thyroid lesions.
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Affiliation(s)
- Sylvia L. Asa
- Department of Pathology, University Hospitals Cleveland Medical Center, Cleveland, OH, United States
- Department of Pathology, Case Western Reserve University, Cleveland, OH, United States
- Department of Pathology, University Health Network, Toronto, ON, Canada
- *Correspondence: Sylvia L. Asa, ; Ozgur Mete,
| | - Ozgur Mete
- Department of Pathology, University Health Network, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- *Correspondence: Sylvia L. Asa, ; Ozgur Mete,
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9
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The American Association of Endocrine Surgeons Guidelines for the Definitive Surgical Management of Thyroid Disease in Adults. Ann Surg 2020; 271:e21-e93. [PMID: 32079830 DOI: 10.1097/sla.0000000000003580] [Citation(s) in RCA: 219] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To develop evidence-based recommendations for safe, effective, and appropriate thyroidectomy. BACKGROUND Surgical management of thyroid disease has evolved considerably over several decades leading to variability in rendered care. Over 100,000 thyroid operations are performed annually in the US. METHODS The medical literature from 1/1/1985 to 11/9/2018 was reviewed by a panel of 19 experts in thyroid disorders representing multiple disciplines. The authors used the best available evidence to construct surgical management recommendations. Levels of evidence were determined using the American College of Physicians grading system, and management recommendations were discussed to consensus. Members of the American Association of Endocrine Surgeons reviewed and commented on preliminary drafts of the content. RESULTS These clinical guidelines analyze the indications for thyroidectomy as well as its definitions, technique, morbidity, and outcomes. Specific topics include Pathogenesis and Epidemiology, Initial Evaluation, Imaging, Fine Needle Aspiration Biopsy Diagnosis, Molecular Testing, Indications, Extent and Outcomes of Surgery, Preoperative Care, Initial Thyroidectomy, Perioperative Tissue Diagnosis, Nodal Dissection, Concurrent Parathyroidectomy, Hyperthyroid Conditions, Goiter, Adjuncts and Approaches to Thyroidectomy, Laryngology, Familial Thyroid Cancer, Postoperative Care and Complications, Cancer Management, and Reoperation. CONCLUSIONS Evidence-based guidelines were created to assist clinicians in the optimal surgical management of thyroid disease.
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10
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Jalaly JB, Baloch ZW. Hürthle-cell neoplasms of the thyroid: An algorithmic approach to pathologic diagnosis in light of molecular advances. Semin Diagn Pathol 2020; 37:234-242. [PMID: 32444244 DOI: 10.1053/j.semdp.2020.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/13/2020] [Accepted: 03/23/2020] [Indexed: 01/17/2023]
Abstract
Our understanding of neoplasia is evolving at a rapid pace in these exciting times, where recent molecular pathology advances are reinforcing and fine tuning morphological divisions and classification. Thyroid gland neoplasia in general, and Hürthle-cell neoplasms in particular, are no exception in the current era of histopathology-molecular biology paradigm. In this review paper, we discuss the rationale that led pathologists in the past to separate Hürthle-cell neoplasms into its own dedicated diagnostic category, and provide an algorithmic approach to the differential diagnosis of oncocytic lesions of the thyroid. This review will also shed light on the current WHO classification of Hürthle-cell neoplasms in light of molecular advances that justify histopathologic distinctions.
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Affiliation(s)
- Jalal B Jalaly
- Hospital of the University of Pennsylvania, Department of Pathology, Philadelphia, (PA), United States
| | - Zubair W Baloch
- Hospital of the University of Pennsylvania, Department of Pathology, Philadelphia, (PA), United States.
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11
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Oh HS, Kim SJ, Song E, Lee YM, Sung TY, Kim WG, Kim TY, Song DE. Modified Transverse-Vertical Gross Examination: a Better Method for the Detection of Definite Capsular Invasion in Encapsulated Follicular-Patterned Thyroid Neoplasms. Endocr Pathol 2019; 30:106-112. [PMID: 30661168 DOI: 10.1007/s12022-019-9565-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The diagnosis of encapsulated follicular-patterned thyroid carcinoma (EFPTC) is challenging, and the detection of capsular invasion and/or vascular invasion is essential in distinguishing benign lesions from malignant lesions. In this study, we present a modified transverse-vertical gross examination method with additional vertical cuts at the upper and lower ends of thyroid nodules. In addition, we compared the clinicopathological characteristics of patients with EFPTC between conventional and modified methods. The diagnostic rate of follicular thyroid carcinoma and invasive encapsulated follicular variant of papillary thyroid carcinoma was higher with the modified method (p = 0.003 and p = 0.028, respectively). Furthermore, the paraffin block number and the number of capsular invasion per centimeter were significantly higher with the modified method (p < 0.001 and p = 0.007, respectively). However, vascular invasion was not significantly different between the two methods (p = 0.771). The possibility of identifying capsular invasion was around two times higher with the modified method (odds ratio = 1.91, 95% confidence interval = 1.20-3.07, p = 0.007). A total of 38 samples (23%) in the modified transverse-vertical group had capsular and/or vascular invasion in the additional vertical cuts of the upper/lower ends of the tumor. Our modified transverse-vertical gross examination method was more effective than the conventional transverse examination method for the detection of capsular invasion in EFPTC. This modified gross examination method might allow a better differential diagnosis among various encapsulated micro-follicular proliferative lesions.
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Affiliation(s)
- Hye-Seon Oh
- Division of Endocrinology & Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
- Division of Endocrinology & Metabolism, Department of Internal Medicine, National Police Hospital, 123, Songi-ro, Songpa-gu, Seoul, 05715, Republic of Korea
| | - Sun Jae Kim
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Eyun Song
- Division of Endocrinology & Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Yu-Mi Lee
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Tae-Yon Sung
- Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Won Gu Kim
- Division of Endocrinology & Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Tae Yong Kim
- Division of Endocrinology & Metabolism, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea
| | - Dong Eun Song
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Republic of Korea.
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Abstract
Thyroid cancers of follicular cell derivation provide excellent phenotype-genotype correlations. Current morphologic classifications are complex and require simplification. Benign adenomas have follicular or papillary architecture and bland cytology. Well-differentiated thyroid carcinomas exhibit follicular architecture, expansile growth, and variable cytologic atypia and invasiveness; low-risk tumors have excellent prognosis after surgical resection whereas widely-invasive and angioinvasive tumors warrant total thyroidectomy and radioablation. Papillary carcinoma is less differentiated; indolent microcarcinomas can be managed by active surveillance, whereas clinical lesions with local or distant spread require therapy. Progression gives rise to poorly differentiated and anaplastic carcinomas that are less common but far more aggressive.
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Affiliation(s)
- Sylvia L Asa
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Elizabeth Street, Toronto, Ontario M5G 2C4, Canada.
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13
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Thyroid tumors with follicular architecture. Ann Diagn Pathol 2019; 38:51-58. [DOI: 10.1016/j.anndiagpath.2018.10.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 10/17/2018] [Indexed: 11/19/2022]
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Hamza A, Khawar S, Alrajjal A, Salehi S. Processing the entire capsule in thyroid follicular lesions improves diagnostic accuracy. Ann Diagn Pathol 2018; 39:21-24. [PMID: 30599380 DOI: 10.1016/j.anndiagpath.2018.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/17/2018] [Accepted: 12/21/2018] [Indexed: 11/25/2022]
Abstract
BACKGROUND There is contradictory evidence in literature with respect to diagnosis and management of follicular lesions of the thyroid gland. From surgical pathology stand point, pathologists require submission and processing of entire capsule for microscopic evaluation. This can be extremely challenging especially in larger lesions. METHOD We studied the impact of submitting entire capsule on final pathologic diagnosis in cases on which only representative sections were submitted initially and entire capsule was submitted subsequently. RESULTS A total of 80 specimens were identified. Mean size of the nodule in these cases was 4.4 ± 1.9 cm. Mean initial tissue sections submitted were 11.6 ± 3.6. Entire capsule was submitted subsequently in an additional 12.6 ± 13.3 sections. Submission of entire capsule contributed to final diagnosis in 3 (3.8%) cases whereby foci of capsular microinvasion were identified. There was no significant difference in the requirement of subsequent sections in specimens grossed by residents compared to those grossed by pathologist assistants (10.4 ± 10.8 vs. 14.4 ± 14.9, p = 0.18). The processing cost of additional sections of capsule was $ 4143 in these cases. CONCLUSION Processing of entire capsule in thyroid follicular lesions has a definitive yield that comes at a high cost. Thin slicing and looking for areas of gross abnormality such as mushrooming may be more practical especially in larger lesions.
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Affiliation(s)
- Ameer Hamza
- St. John Hospital and Medical Center, Detroit, MI, USA.
| | - Sidrah Khawar
- St. John Hospital and Medical Center, Detroit, MI, USA
| | | | - Sajad Salehi
- St. John Hospital and Medical Center, Detroit, MI, USA
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15
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Kakudo K, Bychkov A, Bai Y, Li Y, Liu Z, Jung CK. The new 4th edition World Health Organization classification for thyroid tumors, Asian perspectives. Pathol Int 2018; 68:641-664. [PMID: 30537125 DOI: 10.1111/pin.12737] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kennichi Kakudo
- Faculty of Medicine, Department of Pathology and Laboratory Medicine, Nara Hospital, Kindai University, Ikoma-city, Japan
| | - Andrey Bychkov
- Department of Pathology, Kameda Medical Center, Kawagoe, Chiba, Japan.,Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yanhua Bai
- Key Laboratory of Carcinogenesis and Translational Research, (Ministry of Education), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Yaqiong Li
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Shandong, China
| | - Zhiyan Liu
- Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Shandong, China
| | - Chan Kwon Jung
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Korea
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16
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Ahn S, Jung S, Kim JY, Shin JH, Hahn SY, Oh YL. Evaluation of Modified Core-Needle Biopsy in the Diagnosis of Thyroid Nodules. Korean J Radiol 2018; 19:656-664. [PMID: 29962871 PMCID: PMC6005953 DOI: 10.3348/kjr.2018.19.4.656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Accepted: 12/03/2017] [Indexed: 01/08/2023] Open
Abstract
Objective Core needle biopsy (CNB) of the thyroid is an additional diagnostic method for non-diagnostic or indeterminate cytology samples. We sought to evaluate a new modified core biopsy technique and compare the concordance of its diagnosis with the final diagnosis of the surgically resected specimen. Materials and Methods A retrospective analysis was conducted on 842 patients who had a thyroid CNB with or without a previous fine-needle aspiration from August 2002 to March 2015; 38% of patients ultimately underwent thyroidectomy. We divided the patients into two groups for comparison: conventional group (n = 329) and new modified technique group (n = 513) that enabled sampling of not only the lesion but also the margin and surrounding parenchyma. The diagnostic conclusiveness of CNB and concordant rate with thyroidectomy was compared between the two groups. Results The overall diagnostic conclusiveness did not exhibit a significant increase (77% in the conventional technique group and 75% in the modified technique group, p = 0.408). In terms of the diagnostic concordance rate between CNB and thyroidectomy, no overall significant increase was observed (83% in the conventional technique group and 88% in the modified technique group, p = 0.194). However, only in follicular-patterned lesions (nodular hyperplasia, follicular neoplasm, and follicular variant of papillary thyroid carcinoma), a significant increase in the diagnostic concordance rate was observed (83% in the conventional group and 94% in the modified technique group, p = 0.033). Conclusion Modified CNB technique can be beneficial for the accurate diagnosis of follicular-patterned thyroid lesions.
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Affiliation(s)
- Soomin Ahn
- Department of Pathology, Seoul National University Bundang Hospital, Seongnam 13620, Korea
| | - Sejin Jung
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Ji-Ye Kim
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Jung Hee Shin
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Soo Yeon Hahn
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
| | - Young Lyun Oh
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
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17
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Seethala RR, Baloch ZW, Barletta JA, Khanafshar E, Mete O, Sadow PM, LiVolsi VA, Nikiforov YE, Tallini G, Thompson LD. Noninvasive follicular thyroid neoplasm with papillary-like nuclear features: a review for pathologists. Mod Pathol 2018; 31:39-55. [PMID: 29052599 DOI: 10.1038/modpathol.2017.130] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 08/24/2017] [Accepted: 08/26/2017] [Indexed: 12/14/2022]
Abstract
The rising incidence of papillary thyroid carcinoma is linked in part to inclusion of noninvasive follicular variant of papillary thyroid carcinoma. Despite its designation as carcinoma, noninvasive follicular variant of papillary thyroid carcinoma appears to be exceptionally indolent, often over treated by current treatment practices. Additionally, criteria for diagnosis have historically been subjective and challenging. Recently, an international multidisciplinary collaborative group performed a clinicopathologic survey of such cases with extended follow-up and concluded based on the outcome data that a revision in nomenclature was warranted, proposing 'Noninvasive Follicular Thyroid Neoplasm with Papillary-like Nuclear Features (NIFTP).' This monograph is a synopsis and guide for pathologists on NIFTP and focuses on histologic features, including inclusion and exclusion criteria used to define NIFTP, as well as grossing guidelines, reporting practices, and potential diagnostic limitations.
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Affiliation(s)
- Raja R Seethala
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Zubair W Baloch
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Justine A Barletta
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Elham Khanafshar
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Ozgur Mete
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Peter M Sadow
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Virginia A LiVolsi
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Yuri E Nikiforov
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Giovanni Tallini
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Lester Dr Thompson
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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18
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Poma AM, Giannini R, Piaggi P, Ugolini C, Materazzi G, Miccoli P, Vitti P, Basolo F. A six-gene panel to label follicular adenoma, low- and high-risk follicular thyroid carcinoma. Endocr Connect 2018; 7:124-132. [PMID: 29298844 PMCID: PMC5754511 DOI: 10.1530/ec-17-0261] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 11/27/2017] [Indexed: 12/19/2022]
Abstract
The distinction between follicular thyroid carcinomas (FTCs) and follicular-patterned benign lesions is almost impossible on fine-needle aspiration cytology. Furthermore, minimally invasive FTCs (MI-FTCs) with less than 4 vascular invasion foci generally have an excellent prognosis, but there are exceptions and, so far, no molecular marker appears able to identify them reliably. We aimed to distinguish benign lesions from low- and high-risk FTCs by a small-scale combination of genes. The expression analysis of 75 selected genes was performed on 18 follicular adenomas (FAs), 14 MI-FTCs and 6 widely invasive FTC (WI-FTCs). The mutational status of the RAS genes, TERT promoter and PAX8-PPARG rearrangements was also investigated. Seven samples were mutated, namely 3 MI-FTCs and 4 WI-FTCs. Twenty-five genes were differentially expressed (FDR <0.05) between FAs and WI-FTCs. Six of these (ECM1, RXRG, SDPR, SLC26A4, TIFF3, TIMP1) were also differently expressed among MI-FTCs and FAs or WI-FTCs and were considered to build a classification model, which was tested to classify samples according to their histological class. Hence, 31 out of 38 were correctly classified, and accuracy remained high after cross-validation (27/38). The 2 MI-FTCs incorrectly classified as WI-FTCs harbored both RAS and TERT promoter mutations. The capability of these six genes to stratify benign, low- and high-risk lesions appears to be promising in supporting the diagnosis of indeterminate thyroid nodules.
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Affiliation(s)
- Anello Marcello Poma
- Department of SurgicalMedical, Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
| | - Riccardo Giannini
- Department of SurgicalMedical, Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
| | - Paolo Piaggi
- National Institute of Diabetes and Digestive and Kidney DiseasesNational Institutes of Health, Phoenix, Arizona, USA
| | - Clara Ugolini
- Department of Laboratory MedicineSection of Pathology, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | - Gabriele Materazzi
- Department of SurgicalMedical, Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
| | - Paolo Miccoli
- Department of SurgicalMedical, Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
| | - Paolo Vitti
- Department of Clinical and Experimental MedicineUniversity of Pisa, Pisa, Italy
| | - Fulvio Basolo
- Department of SurgicalMedical, Molecular Pathology and Critical Area, University of Pisa, Pisa, Italy
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19
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Gene Expression (mRNA) Markers for Differentiating between Malignant and Benign Follicular Thyroid Tumours. Int J Mol Sci 2017; 18:ijms18061184. [PMID: 28574441 PMCID: PMC5486007 DOI: 10.3390/ijms18061184] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/26/2017] [Accepted: 05/28/2017] [Indexed: 01/21/2023] Open
Abstract
Distinguishing between follicular thyroid cancer (FTC) and follicular thyroid adenoma (FTA) constitutes a long-standing diagnostic problem resulting in equivocal histopathological diagnoses. There is therefore a need for additional molecular markers. To identify molecular differences between FTC and FTA, we analyzed the gene expression microarray data of 52 follicular neoplasms. We also performed a meta-analysis involving 14 studies employing high throughput methods (365 follicular neoplasms analyzed). Based on these two analyses, we selected 18 genes differentially expressed between FTA and FTC. We validated them by quantitative real-time polymerase chain reaction (qRT-PCR) in an independent set of 71 follicular neoplasms from formaldehyde-fixed paraffin embedded (FFPE) tissue material. We confirmed differential expression for 7 genes (CPQ, PLVAP, TFF3, ACVRL1, ZFYVE21, FAM189A2, and CLEC3B). Finally, we created a classifier that distinguished between FTC and FTA with an accuracy of 78%, sensitivity of 76%, and specificity of 80%, based on the expression of 4 genes (CPQ, PLVAP, TFF3, ACVRL1). In our study, we have demonstrated that meta-analysis is a valuable method for selecting possible molecular markers. Based on our results, we conclude that there might exist a plausible limit of gene classifier accuracy of approximately 80%, when follicular tumors are discriminated based on formalin-fixed postoperative material.
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20
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Glomski K, Nosé V, Faquin WC, Sadow PM. Metastatic Follicular Thyroid Carcinoma and the Primary Thyroid Gross Examination: Institutional Review of Cases from 1990 to 2015. Endocr Pathol 2017; 28:177-185. [PMID: 28444500 DOI: 10.1007/s12022-017-9483-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The diagnosis of follicular-patterned carcinomas, including follicular thyroid carcinoma, oncocytic (Hürthle cell) carcinoma, and the encapsulated follicular variant of papillary thyroid carcinoma, requires evidence of capsular and/or vascular invasion. With minimally invasive carcinomas classified often within less than a millimeter of tissue segregating them from adenomas and non-invasive follicular thyroid neoplasms with papillary-like nuclear features, opinions vary internationally over how much of the capsule to submit in order to deem it well enough represented, considering that even if grossly entirely submitted in microcassettes, without leveling through each tissue block, the capsule is truly never entirely examined microscopically. Here, we retrospectively examine submission practices and outcomes at a single, high-volume institution over a 25-year period. Our results indicate that the vast majority of lesions with poor outcomes are those with wide invasion, and tumors lacking gross evidence of capsular perturbation rarely lead to recurrence or metastasis, an unsurprising result that should prompt re-evaluation of our grossing methods and approach to follicular-patterned tumors in a time of cost restraint, molecular diagnostics, and low biological potential of encapsulated, circumscribed neoplasia of the thyroid.
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Affiliation(s)
- Krzysztof Glomski
- Pathology Service, WRN219, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, 02114, USA
- Department of Pathology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA
| | - Vania Nosé
- Pathology Service, WRN219, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, 02114, USA
- Department of Pathology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA
| | - William C Faquin
- Pathology Service, WRN219, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, 02114, USA
- Department of Pathology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, MA, 02114, USA
| | - Peter M Sadow
- Pathology Service, WRN219, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, 02114, USA.
- Department of Pathology, Harvard Medical School, 25 Shattuck Street, Boston, MA, 02115, USA.
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, 243 Charles Street, Boston, MA, 02114, USA.
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21
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Thick tumor capsule is a valuable risk factor for distant metastasis in follicular thyroid carcinoma. Auris Nasus Larynx 2017; 45:147-155. [PMID: 28506522 DOI: 10.1016/j.anl.2017.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 03/28/2017] [Accepted: 05/01/2017] [Indexed: 11/22/2022]
Abstract
OBJECTIVE While the biological behavior of follicular thyroid carcinoma (FTC) has been studied in great detail using clinical experience, few studies have investigated pre- or intraoperative factors related to the risk of distant metastasis (DM) among patients with FTC. The aim of this study was to analyze the characteristics of FTC with DM. METHODS This study retrospectively investigated 102 patients with FTC who underwent surgery between 1988 and 2013. We compared clinicopathological characteristics between FTC with and without DM. RESULTS Univariate analysis revealed nodal metastasis (p=0.045), serum thyroglobulin (Tg) at initial operation (≥1000ng/ml; p<0.0001), widely invasive appearance according to macroscopic findings (p<0.0001), thick tumor capsule (≥1mm; p<0.0001), vascular invasion (p=0.0003), extrathyroidal invasion (p=0.047), and venous tumor embolism (p=0.045) as significant risk factors for DM. Multivariate analysis conducted using pre- and intraoperative factors identified thick tumor capsule (≥1mm), serum Tg at initial operation (≥1000ng/ml), and macroscopically widely invasive appearance as risk factors independently associated with development of DM. CONCLUSION Patients with these risk factors should undergo total thyroidectomy and radioactive iodine ablation.
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22
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Asa SL. The evolution of differentiated thyroid cancer. Pathology 2017; 49:229-237. [PMID: 28279477 DOI: 10.1016/j.pathol.2017.01.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 01/06/2017] [Accepted: 01/08/2017] [Indexed: 01/29/2023]
Abstract
Differentiated thyroid tumours of follicular cell derivation have traditionally been classified based on architecture, cytology, or both. The features that distinguish the various entities are controversial and diagnostic criteria are inconsistent and often irreproducible. The complexity of classification schemes has not been substantiated by molecular profiling. In this review, a simplistic approach to the diagnosis of well differentiated thyroid neoplasia is provided to challenge the dogma. The proposed classification matches the molecular profiles of these lesions and simplifies the criteria for diagnosis. This approach can be used to support rational treatment algorithms.
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Affiliation(s)
- Sylvia L Asa
- Department of Pathology, Laboratory Medicine Program, University Health Network, Toronto, Ontario, Canada; Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.
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23
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Nikiforov YE, Seethala RR, Tallini G, Baloch ZW, Basolo F, Thompson LDR, Barletta JA, Wenig BM, Al Ghuzlan A, Kakudo K, Giordano TJ, Alves VA, Khanafshar E, Asa SL, El-Naggar AK, Gooding WE, Hodak SP, Lloyd RV, Maytal G, Mete O, Nikiforova MN, Nosé V, Papotti M, Poller DN, Sadow PM, Tischler AS, Tuttle RM, Wall KB, LiVolsi VA, Randolph GW, Ghossein RA. Nomenclature Revision for Encapsulated Follicular Variant of Papillary Thyroid Carcinoma: A Paradigm Shift to Reduce Overtreatment of Indolent Tumors. JAMA Oncol 2017; 2:1023-9. [PMID: 27078145 DOI: 10.1001/jamaoncol.2016.0386] [Citation(s) in RCA: 914] [Impact Index Per Article: 130.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
IMPORTANCE Although growing evidence points to highly indolent behavior of encapsulated follicular variant of papillary thyroid carcinoma (EFVPTC), most patients with EFVPTC are treated as having conventional thyroid cancer. OBJECTIVE To evaluate clinical outcomes, refine diagnostic criteria, and develop a nomenclature that appropriately reflects the biological and clinical characteristics of EFVPTC. DESIGN, SETTING, AND PARTICIPANTS International, multidisciplinary, retrospective study of patients with thyroid nodules diagnosed as EFVPTC, including 109 patients with noninvasive EFVPTC observed for 10 to 26 years and 101 patients with invasive EFVPTC observed for 1 to 18 years. Review of digitized histologic slides collected at 13 sites in 5 countries by 24 thyroid pathologists from 7 countries. A series of teleconferences and a face-to-face conference were used to establish consensus diagnostic criteria and develop new nomenclature. MAIN OUTCOMES AND MEASURES Frequency of adverse outcomes, including death from disease, distant or locoregional metastases, and structural or biochemical recurrence, in patients with noninvasive and invasive EFVPTC diagnosed on the basis of a set of reproducible histopathologic criteria. RESULTS Consensus diagnostic criteria for EFVPTC were developed by 24 thyroid pathologists. All of the 109 patients with noninvasive EFVPTC (67 treated with only lobectomy, none received radioactive iodine ablation) were alive with no evidence of disease at final follow-up (median [range], 13 [10-26] years). An adverse event was seen in 12 of 101 (12%) of the cases of invasive EFVPTC, including 5 patients developing distant metastases, 2 of whom died of disease. Based on the outcome information for noninvasive EFVPTC, the name "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP) was adopted. A simplified diagnostic nuclear scoring scheme was developed and validated, yielding a sensitivity of 98.6% (95% CI, 96.3%-99.4%), specificity of 90.1% (95% CI, 86.0%-93.1%), and overall classification accuracy of 94.3% (95% CI, 92.1%-96.0%) for NIFTP. CONCLUSIONS AND RELEVANCE Thyroid tumors currently diagnosed as noninvasive EFVPTC have a very low risk of adverse outcome and should be termed NIFTP. This reclassification will affect a large population of patients worldwide and result in a significant reduction in psychological and clinical consequences associated with the diagnosis of cancer.
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Affiliation(s)
- Yuri E Nikiforov
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Raja R Seethala
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Giovanni Tallini
- Anatomic Pathology, Department of Medicine (DIMES), University of Bologna School of Medicine, Bologna, Italy
| | - Zubair W Baloch
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia
| | - Fulvio Basolo
- Department of Surgical, Medical and Molecular Pathology, University of Pisa, Pisa, Italy
| | | | - Justine A Barletta
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Bruce M Wenig
- Department of Pathology, Mount Sinai Health System, New York, New York
| | - Abir Al Ghuzlan
- Department of Medical Biology and Pathology, Gustave Roussy Cancer Campus Grand Paris, Villejuif, France
| | - Kennichi Kakudo
- Department of Pathology and Laboratory Medicine, Nara Hospital, Kindai University Faculty of Medicine, Ikoma-city, Japan
| | - Thomas J Giordano
- Department of Pathology, University of Michigan, Ann Arbor,Department of Pathology, University of Michigan, Ann Arbor
| | - Venancio A Alves
- Department of Pathology, University of Sao Paulo School of Medicine, Sao Paulo, Brazil,Department of Pathology, University of Sao Paulo School of Medicine, Sao Paulo, Brazil
| | | | - Sylvia L Asa
- Department of Pathology, University Health Network, Toronto, Ontario, Canada
| | - Adel K El-Naggar
- Department of Pathology, University of Texas M.D. Anderson Cancer Center, Houston
| | - William E Gooding
- Biostatistics Facility, University of Pittsburgh Cancer Institute, Pittsburgh, Pennsylvania
| | - Steven P Hodak
- Division of Endocrinology and Metabolism, New York University School of Medicine, New York
| | - Ricardo V Lloyd
- University of Wisconsin School of Medicine and Public Health, Madison
| | - Guy Maytal
- Department of Psychiatry, Massachusetts General Hospital, Boston
| | - Ozgur Mete
- Department of Pathology, University Health Network, Toronto, Ontario, Canada
| | | | - Vania Nosé
- Department of Pathology, Massachusetts General Hospital, Boston
| | - Mauro Papotti
- Department of Oncology, University of Turin, Torino, Italy
| | - David N Poller
- University of Portsmouth, Department of Pathology, Queen Alexandra Hospital, Cosham, Portsmouth, United Kingdom
| | - Peter M Sadow
- Department of Pathology, Massachusetts General Hospital, Boston,Department of Pathology, University of California San Francisco
| | - Arthur S Tischler
- Department of Pathology and Laboratory Medicine, Tufts University School of Medicine, Tufts Medical Center, Boston, Massachusetts
| | - R Michael Tuttle
- Department of Endocrinology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Kathryn B Wall
- Thyroid Cancer Survivors Association Inc, Raleigh, North Carolina
| | - Virginia A LiVolsi
- Department of Pathology and Laboratory Medicine, Hospital of the University of Pennsylvania, Perelman School of Medicine, Philadelphia
| | - Gregory W Randolph
- General and Thyroid and Parathyroid Endocrine Surgery Division, Massachusetts Eye and Ear Infirmary, Boston
| | - Ronald A Ghossein
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, New York
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24
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Zhou AG, Bishop JA, Ali SZ. Non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP). J Am Soc Cytopathol 2017; 6:211-216. [PMID: 31043245 DOI: 10.1016/j.jasc.2017.06.206] [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] [Received: 06/16/2017] [Revised: 06/28/2017] [Accepted: 06/28/2017] [Indexed: 11/29/2022]
Abstract
Non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) is a new term replacing what was previously known as non-invasive encapsulated follicular variant of papillary thyroid carcinoma (FVPTC). These tumors show benign/indolent clinical behavior when compared with invasive FVPTC, which led to their reclassification as a "non-malignant" neoplasm. NIFTP shares essentially similar cytomorphologic features as FVPTC, and can only be definitively diagnosed on surgical excision specimens. This article provides an update on morphologic characteristics of NIFTP, along with pertinent molecular studies and management algorithms.
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Affiliation(s)
- Amy G Zhou
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Justin A Bishop
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Syed Z Ali
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland; Department of Radiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland.
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25
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Moghaddam PA, Virk R, Sakhdari A, Prasad ML, Cosar EF, Khan A. Five Top Stories in Thyroid Pathology. Arch Pathol Lab Med 2016; 140:158-70. [PMID: 26910221 DOI: 10.5858/arpa.2014-0468-ra] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT Thyroid carcinoma is the most common malignant tumor of endocrine organs, yet it only accounts for approximately 1% of all cancers in the United States with more than 35,000 new cases diagnosed each year and more than 450,000 people living with this disease. While most tumors can be diagnosed without much difficulty, a few tumor types, especially tumors with follicular pattern, sometimes pose a diagnostic challenge. OBJECTIVE To discuss morphologic, immunohistochemical, and molecular features of thyroid tumors. We also explore the clinicopathologic features of papillary microcarcinoma and medullary microcarcinoma and how the latter is related and differentiated from C-cell hyperplasia. Finally with the ever-growing list of organ systems involved in immunoglobulin (Ig) G4-related diseases, we discuss the still not completely explored IgG-4-related thyroid disease. DATA SOURCES Data were obtained from review of the pertinent peer-reviewed literature and institutional experience. CONCLUSIONS Histomorphologic evaluation still remains the gold standard for diagnosis in most cases of thyroid diseases. The application of ancillary studies such as immunohistochemistry and molecular diagnosis, including next-generation sequencing, is becoming more common.
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Affiliation(s)
- Parnian Ahmadi Moghaddam
- From the Department of Pathology, University of Massachusetts Memorial Medical Center, Worcester (Drs Moghaddam, Sakhdari, Cosar, and Khan)
| | - Renu Virk
- and the Department of Pathology, Yale School of Medicine, New Haven, Connecticut (Drs Virk and Prasad)
| | - Ali Sakhdari
- From the Department of Pathology, University of Massachusetts Memorial Medical Center, Worcester (Drs Moghaddam, Sakhdari, Cosar, and Khan)
| | - Manju L Prasad
- and the Department of Pathology, Yale School of Medicine, New Haven, Connecticut (Drs Virk and Prasad)
| | - Ediz F Cosar
- From the Department of Pathology, University of Massachusetts Memorial Medical Center, Worcester (Drs Moghaddam, Sakhdari, Cosar, and Khan)
| | - Ashraf Khan
- From the Department of Pathology, University of Massachusetts Memorial Medical Center, Worcester (Drs Moghaddam, Sakhdari, Cosar, and Khan)
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26
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Abstract
This paper reviews the pathologic features of lesions which are oncocytic and involve classic endocrine organs. The history of the oncocytic cell, its morphologic and ultrastructural features, and important immunohistochemical findings are reviewed. Oncocytic proliferations including non-neoplastic and neoplastic of the thyroid, parathyroid, adrenal (both cortex and medulla), and pituitary are described. Their clinical relevance, functional capacity and capability, and where appropriate, prognostic implications are discussed. Important and relevant molecular biological information is included where appropriate.
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27
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LiVolsi VA, Baloch ZW. Follicular-patterned tumors of the thyroid: the battle of benign vs. malignant vs. so-called uncertain. Endocr Pathol 2011; 22:184-9. [PMID: 22072271 DOI: 10.1007/s12022-011-9183-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
This article will review the controversial area of follicular-patterned thyroid tumors. The literature is discussed with emphasis on pathologic diagnosis and the criteria for malignancy. In addition, the current state of knowledge regarding molecular markers and their utility in diagnosing benign from malignant nodules is described. Finally, the apparent lack of consistency with regard to results of certain immunohistochemical markers is included.
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Affiliation(s)
- Virginia A LiVolsi
- Department of Pathology and Laboratory Medicine, Division of Anatomic Pathology, University of Pennsylvania, Philadelphia, PA 19104, USA.
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28
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Malignant Struma Ovarii: An Analysis of 88 Cases, Including 27 With Extraovarian Spread. Int J Gynecol Pathol 2009; 28:405-22. [DOI: 10.1097/pgp.0b013e3181a27777] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Abstract
Thyroid nodules are common; almost 20% of the population has a palpable thyroid nodule and approximately 70% has a nodule detected by ultrasound. Thyroid cancer is the most frequent endocrine malignancy, and incidence rates have steadily increased over the last decades. Papillary carcinoma (PTC) is the most common malignant neoplasm of the thyroid; the diagnosis of this most frequent type (85-90%) has been increasing, possibly due to changing recognition of morphologic criteria. PTC is defined histologically as a malignant tumor showing evidence of follicular epithelial differentiation and characterized by distinctive nuclear features. However, there are borderline lesions that do not completely fulfill these criteria, making the diagnosis difficult. The use of immunohistochemical and molecular markers adds objective criteria to this confusing and controversial area of pathology. We review the differential diagnosis of well-differentiated follicular thyroid neoplasms and the ancillary techniques and molecular characteristics that have been proposed for application in the diagnosis of PTC.
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Affiliation(s)
- Stefano Serra
- Department of Pathology, University Health Network, 200 Elizabeth Street, 11th Floor, Toronto, Ontario, Canada M5G 2C4
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30
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Miller MC, Rubin CJ, Cunnane M, Bibbo M, Miller JL, Keane WM, Pribitkin EA. Intraoperative pathologic examination: cost effectiveness and clinical value in patients with cytologic diagnosis of cellular follicular thyroid lesion. Thyroid 2007; 17:557-65. [PMID: 17614777 DOI: 10.1089/thy.2006.0166] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Routine use of intraoperative pathologic examination (IOPE), including frozen section (FS) and scrape preparation cytology (SPC), during diagnostic thyroid lobectomy continues to be a source of controversy. We sought to better delineate the usefulness and cost-benefit ratio of IOPE in the context of cytologically diagnosed cellular follicular lesion (CFL) or follicular neoplasm (FN). DESIGN Records of 205 patients who underwent thyroidectomy for cytologically diagnosed FN or CFL between 1997 and 2005 were retrospectively reviewed. IOPE results, patient demographics, and tumor characteristics were correlated to final histopathologic diagnoses. Sensitivity, specificity, predictive values, accuracy, and costs of IOPE were calculated. MAIN OUTCOME IOPE correctly identified 3 of 16 follicular carcinomas and 9 of 36 papillary carcinomas. Sensitivity, specificity, and accuracy were 23%, 99%, and 78%, respectively. On univariate analysis, malignancy risk among follicular nodules did not correlate with age, gender, or nodule size. On multivariate analysis, nodule size was predictive of malignancy (p < 0.05). Over the entire patient series, routine IOPE resulted in a net cost savings of $74,304.33. CONCLUSIONS IOPE reduced costs and limited the number of completion thyroidectomies necessary. IOPE is specific, cost effective, and of minimal additional risk when performed routinely for patients with CFL or FN.
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MESH Headings
- Adenocarcinoma, Follicular/diagnosis
- Adenocarcinoma, Follicular/pathology
- Adenocarcinoma, Follicular/surgery
- Carcinoma, Papillary/diagnosis
- Carcinoma, Papillary/pathology
- Carcinoma, Papillary/surgery
- Carcinoma, Papillary, Follicular/diagnosis
- Carcinoma, Papillary, Follicular/pathology
- Carcinoma, Papillary, Follicular/surgery
- Cost-Benefit Analysis
- Cytological Techniques/economics
- Female
- Frozen Sections/economics
- Humans
- Intraoperative Period
- Male
- Middle Aged
- Thyroid Neoplasms/diagnosis
- Thyroid Neoplasms/pathology
- Thyroid Neoplasms/surgery
- Thyroidectomy/methods
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Affiliation(s)
- Matthew C Miller
- Department of Otolaryngology-Head and Neck Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania 19107, USA
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31
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Haynik DM, Prayson RA. Immunohistochemical expression of cyclooxygenase 2 in follicular carcinomas of the thyroid. Arch Pathol Lab Med 2005; 129:736-41. [PMID: 15913419 DOI: 10.5858/2005-129-736-ieocif] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT Cyclooxygenase 2 (COX-2) has been shown to be up-regulated and/or overexpressed in a variety of human neoplasms. However, limited data exist on the role of COX-2 in follicular carcinomas of the thyroid. Studies in this area are potentially significant, since therapeutic agents that inhibit COX-2 are currently available and could play a role in treatment. DESIGN A retrospective clinicopathologic review with COX-2 immunohistochemical staining of 34 follicular carcinomas and 7 follicular adenomas with incomplete capsular penetration was performed. RESULTS The study included 41 patients (25 women; mean age, 50.9 years). All patients underwent gross total resection of the neoplasm. Fifteen carcinoma patients received adjuvant radiotherapy. Seven patients with follicular carcinomas developed recurrent disease: 3 patients were alive (mean follow-up, 10.1 years) and 4 patients died of metastatic disease (mean follow-up, 3.5 years). All remaining patients were disease free (mean follow-up, 5.9 years). Only 1 follicular adenoma with incomplete capsular penetration recurred (patient alive at 9 years). The remaining patients were disease free (mean follow-up, 4.9 years). The COX-2 staining was positive in 11 tumors (9 of 34 follicular carcinomas, 2 of 7 follicular adenomas with incomplete capsular penetration). A greater percentage of recurrences (36% COX-2 positive vs 13% COX-2 negative) and fatal tumors (18% COX-2 positive vs 7% COX-2 negative) occurred in patients who had COX-2-positive staining neoplasms. CONCLUSION Only a few follicular carcinomas (26%) and follicular adenomas with incomplete capsular penetration (29%) express COX-2 by immunohistochemical analysis. The data suggest that such expression of COX-2 may correlate with increased tumor recurrence and death; however, studies with larger numbers of patients will be needed to establish this.
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Affiliation(s)
- Denise M Haynik
- Department of Anatomic Pathology, The Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
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32
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Asa SL. The role of immunohistochemical markers in the diagnosis of follicular-patterned lesions of the thyroid. Endocr Pathol 2005; 16:295-309. [PMID: 16627917 DOI: 10.1385/ep:16:4:295] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/1999] [Revised: 11/30/1999] [Accepted: 11/30/1999] [Indexed: 11/11/2022]
Abstract
Thyroid nodules are extremely common in the general population. The differential diagnosis includes numerous entities, non-neoplastic and neoplastic, benign and malignant. However, the diagnosis of follicular-patterned lesions remains an area fraught with controversy and diagnostic criteria are highly variable. It is, therefore, a field in need of objective, scientific markers that better characterize these lesions than has been possible by classical morphology. A number of candidates have been proposed. No single marker can identify all malignant follicular-patterned lesions, however, various combinations have been proposed. They include HBME-1, high molecular weight cytokeratins and ret, galectin-3 and TPO, galectin-3, fibronectin-1, CITED-1, HBME-1, and CK19. Advances in our understanding of the molecular basis of thyroid cancer will allow the identification of new markers and more accurate characterization of specific subtypes of neoplasia and malignancy. As new markers are characterized and validated, directed by molecular profiling of thyroid lesions with characteristic morphology, behavior, and outcome, they will become available as routine immunohistochemical markers that will provide a more accurate, scientific, and clinically relevant consultation report from the pathologist for cytology and surgical pathology procedures. Application of these markers will enhance the diagnosis of thyroid nodules and better guide the management of patients with these lesions.
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Affiliation(s)
- Sylvia L Asa
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada.
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33
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Affiliation(s)
- Sylvia L Asa
- Department of Laboratory Medicine & Pathobiology, University of Toronto, Toronto, Ontario, Canada
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34
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Dosen D, Turić M, Smalcelj J, Janusić R, Grgić MP, Separović V. The value of frozen section in intraoperative surgical management of thyroid follicular carcinoma. Head Neck 2003; 25:521-8. [PMID: 12808654 DOI: 10.1002/hed.10251] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Preoperative and intraoperative diagnosis of follicular carcinoma (FC), resulting in one-stage surgical treatment of follicular thyroid tumors, is an important issue in thyroid surgery. METHODS In the 10-year period there were 4158 operations performed on thyroid gland. There were 1559 patients with follicular tumors, 70 (4.4%) of them having FC. We analyzed the groups of patients with FC determined on frozen section (FS) and permanent section (PS) according to duration of clinical symptoms, ultrasound (US) examination, tumor size, patient gender and age, intensity of invasion, localization, and multiple or solitary occurrence of tumor. RESULTS FC was diagnosed in 39 (55.7%) patients on frozen section (FS). Among the encapsulated (minimal invasion) carcinomas, the FS was accurate in 19 of 33 (57.6%) FC and in 5 of 15 (27.8%) Hürthle cell carcinomas (HCC); among extensively invasive carcinoma in 11 of 14 (78.6%) FC and in 4 of 5 (80.0%) HCC. FC was significantly more common in men (p <.001) and in the right lobe (p <.05). We did not find statistically significant differences concerning duration of symptoms, US examination, tumor size, patient age, and multiple or solitary occurrence of the tumor between the patients with FC diagnosed on FS and the patients with FC diagnosed on PS. CONCLUSIONS The intraoperative diagnosis of FC is difficult. Although the percentage of false-negative results was relatively high (44.3%), there were no false-positive results. This means that the second operation was avoided in 55.7% of the patients, and no unnecessary thyroidectomies were performed. FS biopsy is an important method in surgery of follicular tumors. Improved technical support and the ability to analyze a greater number of slides will increase the accuracy of the method.
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Affiliation(s)
- Danijel Dosen
- Department of Head and Neck Surgery, University Hospital for Tumors, Ilica 197, 10 000 Zagreb, Croatia.
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35
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Abstract
Thyroid pathology is a specialist area but is often encountered by the general pathologist in a variety of forms including cytology, frozen sections, and resection specimens. In the thyroid gland, as for other endocrine organs, many aspects of diagnosis are unique to this area of histopathology; thus, the aims of this paper are to set out best practice guidelines which, although not entirely comprehensive, will be of practical use.
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Affiliation(s)
- C E Anderson
- Department of Pathology, Royal Infirmary of Edinburgh, UK.
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36
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Baloch ZW, Livolsi VA. Follicular-patterned lesions of the thyroid: the bane of the pathologist. Am J Clin Pathol 2002; 117:143-50. [PMID: 11789719 DOI: 10.1309/8vl9-ecxy-nvmx-2rqf] [Citation(s) in RCA: 152] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
This review focuses on follicular-patterned lesions of the thyroid gland and their differential diagnosis. Included are a discussion of the features differentiating follicular adenoma from adenomatous or hyperplastic nodule and follicular adenoma from follicular carcinoma and the follicular variant of papillary thyroid carcinoma. The cytologic and histologic characteristics are described, and criteria for diagnosing the major follicular lesions are reviewed.
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Affiliation(s)
- Zubair W Baloch
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Medical Center, Philadelphia 19103, USA
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37
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Thompson LD, Wieneke JA, Paal E, Frommelt RA, Adair CF, Heffess CS. A clinicopathologic study of minimally invasive follicular carcinoma of the thyroid gland with a review of the English literature. Cancer 2001; 91:505-24. [PMID: 11169933 DOI: 10.1002/1097-0142(20010201)91:3<505::aid-cncr1029>3.0.co;2-6] [Citation(s) in RCA: 175] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND The criteria for minimally invasive (low grade) follicular carcinoma of the thyroid (MI) remain controversial, often resulting in unnecessary treatment. METHODS The records of 130 patients with minimally invasive (MI) follicular thyroid carcinoma were retrieved from the files of the Endocrine Tumor Registry of the Armed Forces Institute of Pathology. RESULTS Ninety-five patients were confirmed to have MI based on the authors' criteria of small-to-medium vessel invasion, capsular invasion of up to full thickness, no parenchymal tumor extension, and no tumor necrosis (patients with oxyphilic tumors were excluded). The remaining 35 patients had tumors that were reclassified as "not low grade" based on large vessel invasion, extension into parenchyma, and tumor necrosis (oxyphilic cases excluded). The MI patients included 67 women and 28 men, ages 20-95 years (average, 42.0 years). Nearly all patients presented with a thyroid mass (n = 90 patients). The mean tumor size was 2.8 cm. Histologic features examined for tumor classification included cellularity, capsule nature, capsular invasion, vascular invasion, extension into parenchyma, cytoplasmic oxyphilia, mitotic activity, and necrosis. All patients were treated with surgical excision. Adjuvant radioactive iodine therapy was performed in 24 patients. Five patients developed recurrent disease: four were alive or had died without evidence of disease after additional treatment (mean, 18.1 years), and one patient died with disease (MI tumor) at 15.1 years. All of the remaining patients were disease free (mean follow-up, 16.5 years). CONCLUSIONS There are reproducible histologic criteria to diagnose patients with MI follicular carcinoma. The overall excellent long term prognosis and a good patient outcome suggests that no additional surgery is necessary.
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Affiliation(s)
- L D Thompson
- Department of Endocrine and Otorhinolaryngic-Head & Neck Pathology, Armed Forces Institute of Pathology, Building 54, Room G066-11, 6825 16th St. NW, Washington, DC 20306-6000, USA.
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38
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Weber AL, Randolph G, Aksoy FG. The thyroid and parathyroid glands. CT and MR imaging and correlation with pathology and clinical findings. Radiol Clin North Am 2000; 38:1105-29. [PMID: 11054972 DOI: 10.1016/s0033-8389(05)70224-4] [Citation(s) in RCA: 131] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Thyroid imaging approach is based on the preliminary clinical evaluation. Lesions that are smaller than 2 cm should be assessed with US, which is capable of discriminating masses as small as 2 mm and distinguishing solid from cystic nodules. US-guided FNAB provides tissue for cytologic examination of thyroid nodules. CT and MR imaging are indicated for larger tumors (greater than 3 cm diameter) that extend outside the gland to adjoining structures, including the mediastinum, and retropharyngeal region. Metastatic lymph nodes in the neck and invasion of the aerodigestive tract are also in the realm of CT and MR imaging. Thyroid nodules are categorized on scintigraphy as hot or cold nodules. Hot nodules are rarely malignant, whereas cold nodules have an incidence of 10% to 20% of malignancy. Calcifications (amorphous, globular, nodular, and linear) occur in adenomas and carcinomas and have no differential diagnostic features except for psammomatous calcifications, which are a pathognomonic finding in papillary carcinomas and a small percentage of medullary carcinomas. Papillary carcinoma is the most common malignant tumor (80%) followed by follicular (20% to 25%); medullary (5%); undifferentiated; anaplastic carcinomas (< 5%); lymphoma (5%); and metastases. Lymph node metastases are common in papillary carcinoma, 50% at presentation, and less common in follicular carcinomas. The metastatic nodes in papillary carcinoma may enhance markedly (hypervascular); show increased signal intensity on T1-weighted images (increased thyroglobulin content or hemorrhage); and reveal punctate calcifications. Localized invasion of the larynx, trachea, and esophagus occurs predominantly in papillary and follicular carcinomas; the incidence is less than 5%. Ectopic thyroid tissue may be encountered in the tongue (foramen cecum); along the midline between posterior tongue and isthmus of thyroid gland; lateral neck; mediastinum; and oral cavity. Goiter and malignant tumors, notably papillary carcinoma, may develop in ectopic thyroid tissue. Carcinomas may also arise in thyroglossal duct cysts, which develop from duct remnants between the foramen cecum and thyroid isthmus. Infectious disease of the thyroid gland is not common and the CT and MR imaging findings are similar as described under neck infection. Other types of inflammatory disorders including Hashimoto's thyroiditis, granulomatous thyroiditis, and Riedel's struma display no specific imaging features. Imaging studies may, however, be indicated to confirm a suspected clinical diagnosis and assess compromise of the airway (Riedel's struma). HPT is a clinical diagnosis in which hypercalcemia is the most important finding. Parathyroid hyperplasia, adenoma, and carcinoma represent underlying lesions. To relieve the patient's symptoms surgical extirpation is indicated. The surgical success rate without imaging is 95%. The indications for imaging studies vary but it is generally agreed that reoperation after a previous failed surgical attempt and suspicion of an ectopic parathyroid adenoma should be investigated by imaging. These consist of US, nuclear medicine studies, CT and MR imaging. US and technetium sestamibi scanning have the highest accuracy rate for localizing an adenomatous gland at and near the thyroid gland. Ectopic adenomas, particularly if they are located in the mediastinum, are preferrably investigated with CT and MR imaging with gadolinium and fat suppression. Carcinomas and parathyroid cysts are optimally evaluated by CT and MR imaging. On MR imaging adenomas are low in signal intensity on T1-weighted images, high in signal intensity on T2-weighted images, and enhance post introduction of gadolinium.
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Affiliation(s)
- A L Weber
- Department of Radiology, Massachusetts Eye and Ear Infirmary, Boston, USA.
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39
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Muro-Cacho CA, Ku NN. Tumors of the thyroid gland: histologic and cytologic features--part 1. Cancer Control 2000; 7:276-87. [PMID: 10832114 DOI: 10.1177/107327480000700311] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- C A Muro-Cacho
- Pathology Department, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA.
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40
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Goldstein NS, Czako P, Neill JS. Metastatic minimally invasive (encapsulated) follicular and Hurthle cell thyroid carcinoma: a study of 34 patients. Mod Pathol 2000; 13:123-30. [PMID: 10697268 DOI: 10.1038/modpathol.3880023] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Most studies that have examined minimally invasive, encapsulated, follicular carcinoma (FC) or Hurthle cell carcinomas (HCs) have contained only a few metastatic neoplasms. We studied 34 patients with a single, minimally invasive, metastatic FC or HC and compared them with 38 patients with similar, nonmetastatic FCs or HCs. The numbers of incomplete capsular penetration (neoplasm into but not through the capsule), complete capsular penetration (neoplasm through the capsule), and vascular invasion foci were quantified. The median number (three), range, and distribution of complete capsular penetration and vascular invasion foci were similar in the nonmetastatic and metastatic carcinomas. All of the metastatic FCs and HCs had at least one vascular invasion or complete capsular penetration focus. Sixty-two percent of the metastatic carcinomas had two to four complete capsular penetration foci, and 60% had two to four vascular invasion foci. Two metastatic neoplasms had incomplete capsular penetration but had one and two vascular invasion foci, respectively. One tumor had no vascular invasion but had four complete capsular penetration foci. No metastatic neoplasms had incomplete capsular penetration only. There were no differences in the number of vascular invasion or complete capsular penetration foci between metastatic and nonmetastatic FCs and HCs and between metastatic FCs and HCs. Most metastatic neoplasms had vascular space invasion and complete capsular penetration. The number of complete capsular penetration or vascular invasion foci was not associated with the initial site of metastasis or the interval between the surgery and the metastasis.
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Affiliation(s)
- N S Goldstein
- Department of Anatomic Pathology, William Beaumont Hospital, Royal Oak, Michigan 48073, USA.
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41
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McKee G. The role of fine needle aspiration cytology in the diagnosis of thyroid lesions. J R Soc Med 1998; 91 Suppl 33:28-32. [PMID: 9816349 PMCID: PMC1296295 DOI: 10.1177/014107689809133s07] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- G McKee
- Royal Surrey County Hospital, Guildford, UK
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42
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Abstract
The criteria for the diagnosis of follicular carcinoma of the thyroid and in particular of the "minimally invasive" variant are discussed. The introduction of a new terminology reflecting the indolent behavior of most of the thyroid neoplasms morphologically resembling follicular adenomas, and currently diagnosed as carcinomas on the sole basis of capsular invasion, is recommended.
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43
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Mizukami Y, Michigishi T, Nonomura A, Noguchi M, Nakamura H. Thyroid carcinoma: clinical, pathologic correlations. Crit Rev Oncol Hematol 1995; 18:67-102. [PMID: 7695829 DOI: 10.1016/1040-8428(94)00121-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Affiliation(s)
- Y Mizukami
- Pathology Section, Kanazawa University Hospital, Japan
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44
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Bronner MP, Hamilton R, LiVolsi VA. Utility of frozen section analysis on follicular lesions of the thyroid. Endocr Pathol 1994; 5:154-161. [PMID: 32138424 DOI: 10.1007/bf02921471] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The experience of one surgeon (R.H.) with intraoperative frozen sections (FS) performed on thyroid nodules over a 10-year period was studied to assess the utility of FS in follicular thyroid lesions. One hundred and ten patients with dominant or solitary nodules demonstrating a follicular growth pattern were evaluated. The FS slides and subsequently the permanent sections of the nodules were reviewed by the pathologists in the study (M.P.B., VAL.) without knowledge of the original diagnoses. Our results indicate: (1) if the FS was definitively benign (58 patients), the final diagnosis was benign [these lesions consisted of adenomatous nodule, nodular goiter, follicular adenoma, and Hürthle cell adenoma); (2) if an FS diagnosis of malignancy was rendered (4 patients), it was confirmed on permanent sections (follicular variant of papillary carcinoma in all 4); and (3) if the FS diagnosis was deferred (48 patients), the final diagnosis was benign in all but 10 (21 %) (of these 10, 6 had minimally invasive follicular carcinoma [2 of the Hürthle cell type], and 4 had follicular variants of papillary carcinoma). Overall, sensitivity, specificity, and accuracy rates for FS diagnoses were 29, 100, and 91%. Because unilateral lobectomy may be acceptable therapy for well-differentiated thyroid cancers, and because the efficiency of FS evaluation in diagnosing malignancy is low (only 4 malignancies of 110 total patients were diagnosed at FS, or 3.6% overall), we conclude that in this era of cost-containment, FS is not useful in the evaluation of follicular thyroid nodules identified preoperatively as follicular lesions by fine-needle aspiration cytology. Several recommendations concerning the 3 categories of FS diagnosis (i.e., definitively benign, definitively malignant-especially the follicular variant of papillary carcinoma-and deferred) are also put forward.
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Affiliation(s)
- Mary P Bronner
- Department of Pathology and Laboratory Medicine, Division of Anatomic Pathology, Section of Surgical Pathology, University of Pennsylvania Medical Center, Philadelphia, PA
| | - Ralph Hamilton
- Department of Surgery, Division of Plastic Surgery, University of Pennsylvania Medical Center, Philadelphia, PA
| | - Virginia A LiVolsi
- Department of Pathology and Laboratory Medicine, Division of Anatomic Pathology, Section of Surgical Pathology, University of Pennsylvania Medical Center, Philadelphia, PA
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45
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Tateyama H, Yang YP, Eimoto T, Tada T, Inagaki H, Nakamura T, Iwase H, Kobayashi S. Proliferative cell nuclear antigen expression in follicular tumours of the thyroid with special reference to oxyphilic cell lesions. Virchows Arch 1994; 424:533-7. [PMID: 7913369 DOI: 10.1007/bf00191440] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The expression of proliferative cell nuclear antigen (PCNA) in follicular tumours of the thyroid was examined by immunohistochemistry. Both usual nonoxyphilic cell follicular tumours (non-OCT) and oxyphilic cell tumours (OCT) were subdivided into benign, indeterminate, encapsulated carcinoma, and widely invasive carcinoma types. Among non-OCT the percentages of PCNA-positive cells in benign tumours, encapsulated carcinomas, and widely invasive carcinomas was 2.5%-8.6%, 11.8%-39.1%, and 18.6%-20.0%, respectively. There was a statistically significant difference between benign tumours and encapsulated or widely invasive carcinomas, as in previous studies. A value of 10% was appropriate to distinguish benign from malignant lesions. PCNA-positive cells in indeterminate-type non-OCT were not significantly different from those in benign tumours, ranging from 4.3%-19.6%, and occurring at more than 10% in three of six tumours. Among OCT the positivity was less than 10% in benign tumours (4.5%-7.8%) and more than 10% in malignant tumours (14.1%-35.9%) and all the eight indeterminate tumours (12.5%-27.3%), with a statistically significant differences between the benign tumour and each of the latter types. These results indicate that the examination of PCNA is valuable in diagnosis of thyroid follicular tumours and that the use of similar diagnostic criteria may be warranted in both non-OCT and OCT.
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Affiliation(s)
- H Tateyama
- Department of Pathology, Nagoya City University Medical School, Japan
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46
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Russell P, Lean CL, Delbridge L, May GL, Dowd S, Mountford CE. Proton magnetic resonance and human thyroid neoplasia. I: Discrimination between benign and malignant neoplasms. Am J Med 1994; 96:383-8. [PMID: 8166160 DOI: 10.1016/0002-9343(94)90071-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
PURPOSE Thyroid nodules are very common, yet the vast majority are biologically benign. The extreme difficulty facing the clinician selecting potentially malignant thyroid nodules for surgery was the subject of a recent editorial by Ernest L. Mazzaferri in the American Journal of Medicine (93:359-362, 1992). Here we evaluate the potential of proton magnetic resonance spectroscopy (1H MRS) to provide a solution to this problem. PATIENTS Thyroid tissue from fifty-three patients undergoing partial or total thyroidectomy for solitary thyroid nodules were assessed by 1H MRS. RESULTS When compared with the histologic diagnosis, 1H MRS distinguished normal thyroid tissue (n = 8) from invasive papillary (n = 9), anaplastic (n = 1), and medullary (n = 1) carcinomas with P values of < 0.0001, based on altered cellular chemistry. The same magnetic resonance (MR) criteria categorized pathologically proven follicular carcinoma (n = 8) (established as such by the presence of capsular or vascular invasion at the periphery of the tumor, or by the presence of metastases in the patient) with the other thyroid cancers (P < 0.0001). All other "benign" follicular neoplasms (n = 34), including five atypical follicular adenomas, were assessed by the same 1H MRS criteria and found to fit into one of the two above categories, viz. analogous to benign or malignant thyroid tissue. CONCLUSIONS Proton MRS has the potential to separate out a group of truly benign follicular neoplasms from follicular tumors (both follicular adenomas and follicular carcinomas) that have an atypical follicular pattern on cytologic examination. This is the first report of an objective diagnostic procedure that has the potential to obviate surgical excision in a significant number of patients with benign follicular adenomas, independent of exhaustive histopathologic assessment.
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Affiliation(s)
- P Russell
- Department of Cancer Medicine, University of Sydney, Australia
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47
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Papotti M, Fara E, Ardeleanu C, Bussolati G. Occurrence and significance of vascular invasion in multinodular adenomatous goiter. Endocr Pathol 1994; 5:35-39. [PMID: 32138419 DOI: 10.1007/bf02921368] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Solitary follicular neoplasms of the thyroid gland are usually classified as adenomas or carcinomas according to two main criteria: vascular invasion and capsular penetration. No information is available on the occurrence of vascular invasion in multinodular goiter lesions, except for the case of a follicular carcinoma within a goiter. One thousand consecutive cases of multinodular adenomatous goiter were reviewed. After screening all H&E-stained slides, 5 patients with histological features typical of adenomatous goiter but displaying foci of vascular invasion at the periphery of the nodes were selected. A single vessel (2 patients) and 2-4 vessels (3 patients) at the periphery of different nodules were involved, with clusters of follicular cells lined by endothelium and partly filling the lumen. Clinical information was obtained from all patients: No recurrences or progressive disease were reported 14 to 16 years after operation. These findings indicate that presence of minimal vascular invasion, although a valuable criterion of differentiation in solitary follicular lesions of the thyroid, has little diagnostic importance in the setting of multinodular adenomatous goiter. It does not appear to justify a diagnosis of malignancy and does not indicate a need for further therapy.
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Affiliation(s)
- M Papotti
- Department of Biomedical Sciences and Oncology, University of Turin Medical School, Via Santena 7, 10126, Torino, Italy
| | - E Fara
- Department of Biomedical Sciences and Oncology, University of Turin Medical School, Via Santena 7, 10126, Torino, Italy
| | - C Ardeleanu
- Department of Biomedical Sciences and Oncology, University of Turin Medical School, Via Santena 7, 10126, Torino, Italy
| | - G Bussolati
- Department of Biomedical Sciences and Oncology, University of Turin Medical School, Via Santena 7, 10126, Torino, Italy
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