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Strickland S, Turashvili G. Are Columnar Cell Lesions the Earliest Non-Obligate Precursor in the Low-Grade Breast Neoplasia Pathway? Curr Oncol 2022; 29:5664-5681. [PMID: 36005185 PMCID: PMC9406596 DOI: 10.3390/curroncol29080447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/09/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022] Open
Abstract
Columnar cell lesions (CCLs) of the breast comprise a spectrum of morphologic alterations of the terminal duct lobular unit involving variably dilated and enlarged acini lined by columnar epithelial cells. The World Health Organization currently classifies CCLs without atypia as columnar cell change (CCC) and columnar cell hyperplasia (CCH), whereas flat epithelial atypia (FEA) is a unifying term encompassing both CCC and CCH with cytologic atypia. CCLs have been increasingly recognized in stereotactic core needle biopsies (CNBs) performed for the assessment of calcifications. CCLs are believed to represent the earliest non-obligate precursor of low-grade invasive breast carcinomas as they share molecular alterations and often coexist with entities in the low-grade breast neoplasia pathway. Despite this association, however, the risk of progression of CCLs to invasive breast carcinoma appears low and may not exceed that of concurrent proliferative lesions. As the reported upgrade rates of pure CCL/FEA when identified as the most advanced high-risk lesion on CNB vary widely, the management of FEA diagnosed on CNB remains controversial. This review will include a historical overview of CCLs and will examine histologic diagnostic criteria, molecular alterations, prognosis and issues related to upgrade rates and clinical management.
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Affiliation(s)
- Sarah Strickland
- Department of Pathology and Laboratory Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON K1N 6N5, Canada
| | - Gulisa Turashvili
- Department of Pathology and Laboratory Medicine, Emory University Hospital, Emory University School of Medicine, Atlanta, GA 30322, USA
- Correspondence:
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2
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Ferre R, Kuzmiak CM. Upgrade rate of percutaneously diagnosed pure flat epithelial atypia: systematic review and meta-analysis of 1,924 lesions. J Osteopath Med 2022; 122:253-262. [PMID: 35150124 DOI: 10.1515/jom-2021-0206] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 12/14/2021] [Indexed: 12/29/2022]
Abstract
CONTEXT Management remains controversial due to the risk of upgrade for malignancy from flat epithelial atypia (FEA). Data about the frequency and malignancy upgrade rates are scant. Namely, observational follow-up is advised by many studies in cases of pure FEA on core biopsy and in the absence of an additional surgical excision. For cases of pure FEA, the American College of Surgeons no longer recommends surgical excision but rather recommends observation with clinical and imaging follow-up. OBJECTIVES The aim of this study is to perform a systematic review and meta-analysis to calculate the pooled upgrade of pure FEA following core needle biopsies. METHODS A search of MEDLINE and Embase databases were conducted in December 2020. Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. A fixed- or random-effects model was utilized. Heterogeneity among studies was estimated by utilizing the I2 statistic and considered high if the I2 was greater than 50%. The random-effects model with the DerSimonian and Laird method was utilized to calculate the pooled upgrade rate and its 95% confidence interval. RESULTS A total of 1924 pure FEA were analyzed among 59 included studies. The overall pooled upgrade rate to malignancy was 8.8%. The pooled upgrade rate for mammography only was 8.9%. The pooled upgrade rate for ultrasound was 14%. The pooled upgrade rate for mammography and ultrasound combined was 8.8%. The pooled upgrade rate for MRI-only cases was 27.3%. CONCLUSIONS Although the guidelines for the management of pure FEA are variable, our data support that pure FEA diagnosed at core needle biopsy should undergo surgical excision since the upgrade rate >2%.
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Affiliation(s)
- Romuald Ferre
- Centre hospital de la Sarre, 679 Route 111, La Sarre, QC J9Z 2Y9, Canada
- Department of Radiology, Hopital du Grand Portage, Riviere du Loup, QC, Canada
| | - Cherie M Kuzmiak
- Department of Radiology, UNC School of Medicine, Chapel Hill, NC, USA
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3
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Wahab RA, Lee SJ, Mulligan ME, Zhang B, Mahoney MC. Upgrade Rate of Pure Flat Epithelial Atypia Diagnosed at Core Needle Biopsy: A Systematic Review and Meta-Analysis. Radiol Imaging Cancer 2021; 3:e200116. [PMID: 33778758 DOI: 10.1148/rycan.2021200116] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 11/11/2020] [Accepted: 11/19/2020] [Indexed: 11/11/2022]
Abstract
Purpose To perform a systematic review and meta-analysis to calculate the pooled upgrade rate of pure flat epithelial atypia (FEA) diagnosed at core needle biopsy (CNB). Materials and Methods A PubMed and Embase database search was performed in December 2019. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed. Study quality and publication bias were assessed. The upgrade rate of pure FEA to cancer, invasive carcinoma, and ductal carcinoma in situ (DCIS), as well as the co-occurrence rate of atypical ductal hyperplasia (ADH), with 95% CIs were calculated. A random effect model was used to integrate the proportions and their corresponding 95% CI. Study heterogeneity was calculated using τ2 and I 2 . Results A total of 2482 cases of pure FEA across 42 studies (mean age range, 46-59 years) met inclusion criteria to be analyzed. Significant study heterogeneity was identified (τ2 = 0.001, I 2 = 67%). The pooled upgrade rates reported for pure FEA were 5% (95% CI: 3%, 6%) for breast cancer, 1% (95% CI: 0%, 2%) for invasive carcinoma, and 2% (95% CI: 1%, 3%) for DCIS. When more than 90% of calcifications were removed at CNB, the pooled upgrade rate was 0% (95% CI: 0%, 2%). The pooled co-occurrence rate of ADH at surgical excision was 17% (95% CI: 12%, 21%). Study quality was medium to high with a risk of publication bias (P < .01). Conclusion Pure FEA diagnosed at CNB should be surgically excised due to the pooled upgrade rate of 5% for breast cancer. If more than 90% of the targeted calcifications are removed by CNB for pure FEA, close imaging follow-up is recommended.Keywords: Biopsy/Needle Aspiration, Breast, MammographySupplemental material is available for this article.© RSNA, 2021.
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Affiliation(s)
- Rifat A Wahab
- Department of Radiology, University of Cincinnati Medical Center, 234 Goodman St, ML 0761, Cincinnati, OH 45267-0761 (R.A.W., S.J.L., M.E.M., M.C.M.); and Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio (B.Z.)
| | - Su-Ju Lee
- Department of Radiology, University of Cincinnati Medical Center, 234 Goodman St, ML 0761, Cincinnati, OH 45267-0761 (R.A.W., S.J.L., M.E.M., M.C.M.); and Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio (B.Z.)
| | - Margaret E Mulligan
- Department of Radiology, University of Cincinnati Medical Center, 234 Goodman St, ML 0761, Cincinnati, OH 45267-0761 (R.A.W., S.J.L., M.E.M., M.C.M.); and Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio (B.Z.)
| | - Bin Zhang
- Department of Radiology, University of Cincinnati Medical Center, 234 Goodman St, ML 0761, Cincinnati, OH 45267-0761 (R.A.W., S.J.L., M.E.M., M.C.M.); and Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio (B.Z.)
| | - Mary C Mahoney
- Department of Radiology, University of Cincinnati Medical Center, 234 Goodman St, ML 0761, Cincinnati, OH 45267-0761 (R.A.W., S.J.L., M.E.M., M.C.M.); and Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio (B.Z.)
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4
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Mariscotti G, Durando M, Ruggirello I, Belli P, Caumo F, Nori J, Zuiani C, Tagliafico A, Bicchierai G, Romanucci G, Londero V, Campanino PP, Bussone R, Castellano I, Mule' A, Caneva A, Bianchi S, Di Loreto C, Bergamasco L, Calabrese M, Fonio P, Houssami N. Lesions of uncertain malignant potential of the breast (B3) on vacuum-assisted biopsy for microcalcifications: Predictors of malignancy. Eur J Radiol 2020; 130:109194. [PMID: 32795765 DOI: 10.1016/j.ejrad.2020.109194] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 07/04/2020] [Accepted: 07/21/2020] [Indexed: 12/31/2022]
Abstract
PURPOSE To investigate clinical, radiologic and pathologic features of B3 lesions diagnosed on VABB targeting microcalcifications, for identifying predictors of malignancy. METHOD This retrospective multi-centre study included consecutive VABBs performed over a 10-year period on suspicious microcalcifications not associated with other radiological signs diagnosed as B3 on histology from VABB, with outcomes ascertained by surgical excision. Clinical, demographic, radiological and histological (B3 subcategory) data were collected. For statistical analysis (univariate and binary logistic regression), the primary outcome variable was the upgrade rate to malignancy after surgery. Predictors of upgrade to malignancy were identified from clinical, demographic, radiological and pathological variables (including B3 subcategory). RESULTS Amongst 447 VABBs, there were 57(12.7 %) upgrades to malignancy at surgical histology (36 DCIS and 21 invasive cancer). At univariate analysis, variables significantly associated with increased risk of upgrade to malignancy were age>55 years (p = 0.01), lesion size>10 mm (p < 0.0001), BI-RADS 4b-c and 5 (p = 0.0001), and fine pleomorphic morphology (p = 0.002) of microcalcifications. Binary logistic regression confirmed as significant independent risk factors age, lesion size and BI-RADS category (p = 0.02, 0.02 and 0.0006 respectively). Amongst subcategories of B3 lesions, lobular neoplasia was significantly(p = 0.04) associated with upgrade, confirmed as an independent risk factor [p = 0.03, OR = 2.3(1.1-4.7)]. Flat epithelial atypia was significantly(p = 0.004) associated with reduced odds of upgrade, but binary logistic regression showed only borderline association [p = 0.052, OR = 0.4(0.2-1.01)]. CONCLUSIONS Across B3 lesions diagnosed on histology from VABB of suspicious microcalcifications, older age, size>10 mm, BI-RADS category≥ 4b on imaging, and lobular neoplasia were risk factors for upgrade to malignancy. This information can be used to discuss patients' tailored management options.
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Affiliation(s)
- Giovanna Mariscotti
- Radiology Institute, University of Turin, Department of Diagnostic Imaging and Radiotherapy, A. O. U. Citta della Salute e della Scienza di Torino - Presidio Ospedaliero Molinette, Via Genova 3, 10126, Torino, Italy.
| | - Manuela Durando
- Radiology Institute, University of Turin, Department of Diagnostic Imaging and Radiotherapy, A. O. U. Citta della Salute e della Scienza di Torino - Presidio Ospedaliero Molinette, Via Genova 3, 10126, Torino, Italy.
| | - Irene Ruggirello
- Radiology Institute, University of Turin, Department of Diagnostic Imaging and Radiotherapy, A. O. U. Citta della Salute e della Scienza di Torino - Presidio Ospedaliero Molinette, Via Genova 3, 10126, Torino, Italy.
| | - Paolo Belli
- Department of Radiological, Radiotherapic and Hematological Sciences, Fondazione Policlinico A. Gemelli IRCCS - Universita' Cattolica Sacro Cuore, Largo Agostino Gemelli 8, 00168, Rome, Italy.
| | - Francesca Caumo
- Radiology Department, Veneto Institute of Oncology IOV - IRCCS, Padua, Italy.
| | - Jacopo Nori
- Diagnostic Senology Unit, Azienda Ospedaliero-Universitaria Careggi, Largo G. A. Brambilla 3, 50134, Florence, Italy.
| | - Chiara Zuiani
- Institute of Radiology, Department of Medicine, University of Udine, University Hospital S. Maria della Misericordia, P.le S. Maria della Misericordia, 15, 33100, Udine, Italy.
| | - Alberto Tagliafico
- Department of Health Sciences (DISSAL), University of Genoa, Genova, Italy; Department of Radiology, IRCCS San Martino Hospital, 16132, Genova, Italy.
| | - Giulia Bicchierai
- Diagnostic Senology Unit, Azienda Ospedaliero-Universitaria Careggi, Largo G. A. Brambilla 3, 50134, Florence, Italy.
| | - Giovanna Romanucci
- UOSD Breast Unit ULSS9, Ospedale di Marzana, Piazzale Lambranzi, 1, 37034 Verona, Italy.
| | - Viviana Londero
- Institute of Radiology, Department of Medicine, University of Udine, University Hospital S. Maria della Misericordia, P.le S. Maria della Misericordia, 15, 33100, Udine, Italy.
| | - Pier Paolo Campanino
- Breast Imaging Service, Ospedale Koelliker, C.so Galileo Ferraris 256, 10100, Torino, Italy.
| | - Riccardo Bussone
- Breast Surgery, Presidio Sanitario Ospedale Cottolengo, Via S. Giuseppe Benedetto Cottolengo, 9, 10152, Torino, Italy.
| | | | - Antonino Mule'
- Department of Histopathology and Cytodiagnosis, Fondazione Policlinico A. Gemelli IRCCS -Universita' Cattolica Sacro Cuore, Largo Agostino Gemelli 8, 00168, Rome, Italy.
| | | | - Simonetta Bianchi
- Division of Pathological Anatomy, Department of medical and surgical critical care, University of Florence, Florence, Italy.
| | - Carla Di Loreto
- Anatomic Pathology Institute, Department of Medicine (DAME), University of Udine, Udine, Italy.
| | - Laura Bergamasco
- Department of Surgical Sciences, University of Torino, A. O. U. Citta della Salute e della Scienza di Torino - Presidio Ospedaliero Molinette, C.so Bramante 88, 10126, Torino, Italy.
| | - Massimo Calabrese
- Diagnostic Senology, IRCCS - Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, Italy.
| | - Paolo Fonio
- Radiology Institute, University of Turin, Department of Diagnostic Imaging and Radiotherapy, A. O. U. Citta della Salute e della Scienza di Torino - Presidio Ospedaliero Molinette, Via Genova 3, 10126, Torino, Italy.
| | - Nehmat Houssami
- Screening and Test Evaluation Program, School of Public Health, Sydney Medical School, University of Sydney, Sydney 2006, NSW, Australia.
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Liu C, Dingee CK, Warburton R, Pao JS, Kuusk U, Bazzarelli A, Sidhu R, McKevitt EC. Pure flat epithelial atypia identified on core needle biopsy does not require excision. Eur J Surg Oncol 2020; 46:235-239. [DOI: 10.1016/j.ejso.2019.10.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 09/09/2019] [Accepted: 10/23/2019] [Indexed: 11/30/2022] Open
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Winer LK, Hinrichs BH, Lu S, Hanseman D, Huang Y, Reyna C, Lewis J, Shaughnessy EA. Flat epithelial atypia and the risk of sampling error: Determining the value of excision after image-guided core-needle biopsy. Am J Surg 2019; 218:730-736. [PMID: 31399195 DOI: 10.1016/j.amjsurg.2019.07.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/26/2019] [Accepted: 07/16/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND We determined the sampling error rate of flat epithelial atypia (FEA) and evaluated current guidelines recommending excisional biopsy. METHODS A retrospective review of consecutive excisional biopsies after image-guided core-needle biopsy identified patients with isolated FEA diagnosed between 2014 and 2018. Clinical and pathologic parameters were evaluated. RESULTS Twenty-five women with 27 biopsies were included. Based on pathologic review of original core specimens, 44.4% (N = 12) were accurately diagnosed as FEA. Upon excision, lesions were upgraded to ductal carcinoma in situ (N = 2) or invasive ductal carcinoma (N = 1) in 11.1% of cases. Older age, black race, hormone replacement, and calcifications in the image-guided biopsy specimen were associated with the presence of high-risk or malignant lesions in the excisional biopsy (all p ≤ 0.05). CONCLUSIONS In this study, FEA was frequently overcalled. However, lesions suspicious for FEA warrant excision due to their association with malignancy or high-risk lesions, which may necessitate further surgical management and/or risk-reducing strategies.
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Affiliation(s)
- Leah K Winer
- Division of Surgical Oncology, Department of Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way (ML 0558), Cincinnati, OH, 45267, USA
| | - Benjamin H Hinrichs
- Department of Pathology, University of Cincinnati College of Medicine, 234 Goodman Street, Suite 110, Cincinnati, OH, 45219, USA
| | - Sisi Lu
- Division of Surgical Oncology, Department of Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way (ML 0558), Cincinnati, OH, 45267, USA
| | - Dennis Hanseman
- Division of Surgical Oncology, Department of Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way (ML 0558), Cincinnati, OH, 45267, USA
| | - Yuan Huang
- Department of Pathology, University of Cincinnati College of Medicine, 234 Goodman Street, Suite 110, Cincinnati, OH, 45219, USA
| | - Chantal Reyna
- Division of Surgical Oncology, Department of Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way (ML 0558), Cincinnati, OH, 45267, USA
| | - Jaime Lewis
- Division of Surgical Oncology, Department of Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way (ML 0558), Cincinnati, OH, 45267, USA
| | - Elizabeth A Shaughnessy
- Division of Surgical Oncology, Department of Surgery, University of Cincinnati College of Medicine, 231 Albert Sabin Way (ML 0558), Cincinnati, OH, 45267, USA.
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7
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All pure flat atypical atypia lesions of the breast diagnosed using percutaneous vacuum-assisted breast biopsy do not need surgical excision. Breast 2018; 40:4-9. [DOI: 10.1016/j.breast.2018.03.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2017] [Revised: 03/18/2018] [Accepted: 03/26/2018] [Indexed: 11/18/2022] Open
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8
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Flat epithelial atypia in directional vacuum-assisted biopsy of breast microcalcifications: surgical excision may not be necessary. Mod Pathol 2018; 31:1097-1106. [PMID: 29467479 DOI: 10.1038/s41379-018-0035-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 01/05/2018] [Accepted: 01/07/2018] [Indexed: 11/09/2022]
Abstract
The aim of this study was to analyze the clinicopathological features of patients with flat epithelial atypia, diagnosed in directional vacuum-assisted biopsy targeting microcalcifications, to identify upgrade rate to in situ ductal or invasive breast carcinoma, and determine factors predicting carcinoma in the subsequent excision. We retrospectively evaluated the histological, clinical, and mammographic features of 69 cases from 65 women, with directional vacuum-assisted biopsy-diagnosed flat epithelial atypia with or without atypical ductal hyperplasia or atypical lobular hyperplasia, which underwent subsequent surgical excision. The extent and percentage of microcalcifications sampled by directional vacuum-assisted biopsy were evaluated by mammography. All biopsy and surgical excision slides were reviewed. The age of the women ranged from 40 to 85 years (mean 57 years). All patients presented with mammographically detected microcalcifications only, except in one case that had associated architectural distortion. Extent of calcifications ranged from <1 cm (n = 47), 1-3 cm (n = 15) to > 3 cm (n = 6), and no measurement (n = 1). A mean of 11 cores (range 6-25) was obtained from each lesion. Post-biopsy mammogram revealed >90% removal of calcifications in 81% of cases. Pure flat epithelial atypia represented nearly two-thirds of directional vacuum-assisted biopsy specimens (n = 43, 62%), while flat epithelial atypia coexisted with atypical ductal hyperplasia (18 cases, 26%), or atypical lobular hyperplasia (8 cases, 12%). Upon excision, none of the cases were upgraded to in situ ductal or invasive breast cancer. In one case, however, an incidental, tubular carcinoma (4 mm) was found away from biopsy site. Excluding this case, the upgrade rate was 0%. Our study adds to the growing evidence that diagnosis of flat epithelial atypia on directional vacuum-assisted biopsy for microcalcifications as the only imaging finding is not associated with a significant upgrade to carcinoma on excision, and therefore, excision may not be necessary. Additionally, excision may not be necessary for flat epithelial atypia with atypical ductal hyperplasia limited to ≤2 terminal duct-lobular units, if at least 90% of calcifications have been removed on biopsy.
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9
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Rudin AV, Hoskin TL, Fahy A, Farrell AM, Nassar A, Ghosh K, Degnim AC. Flat Epithelial Atypia on Core Biopsy and Upgrade to Cancer: a Systematic Review and Meta-Analysis. Ann Surg Oncol 2017; 24:3549-3558. [PMID: 28831724 DOI: 10.1245/s10434-017-6059-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Indexed: 11/18/2022]
Abstract
BACKGROUND No consensus exists on whether flat epithelial atypia (FEA) diagnosed percutaneously should be surgically excised. A systematic review and meta-analysis of the frequency of upgrade to cancer or an atypical ductal hyperplasia (ADH) at surgical excision of FEA was performed. METHODS Embase, MEDLINE, Scopus, and Web of Science databases from January 2003 to November 2015 were searched. The inclusion criteria required a manuscript in English with original data on FEA diagnosed percutaneously, data including the presence or absence of other concurrent high-risk lesions, and data including outcome of cancer at surgical excision. Studies were assessed for quality, and two reviewers extracted data. Random-effects meta-analysis was used to pool estimates. The impact of study-level characteristics was assessed by stratified meta-analysis and meta-regression. RESULTS The inclusion criteria was met by 32 studies. A total of 1966 core needle biopsies showed pure FEA, and 1517 (77%) showed surgical excision. The proportions of patients with upgrade to cancer varied from 0 to 42%, with an overall pooled estimate of 11.1%. Heterogeneity was observed, with the greatest impact based on whether a study included cases of FEA diagnosed before 2003. With restriction of the investigation to 16 higher-quality studies, the cancer upgrade pooled estimate was 7.5% (95% confidence interval [CI], 5.4-10.4%), and the rate of invasive cancer was 3% (95% CI 1.9-4.5%). For upgrade to ADH, data from 22 studies including 937 patients were analyzed. The proportion of patients upgraded to ADH ranged from 0 to 60%, with a pooled estimate of 17.9% overall and 18.6% among high-quality studies. CONCLUSIONS With patient management change potential for approximately 25% of patients, this analysis supports a general recommendation for surgical excision of FEA diagnosed by core biopsy.
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Affiliation(s)
| | - Tanya L Hoskin
- Biomedical Statistics and Informatics, Mayo Clinic, Rochester, MN, USA
| | - Aodhnait Fahy
- Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | - Ann M Farrell
- Mayo Clinic Libraries, Mayo Clinic, Rochester, MN, USA
| | - Aziza Nassar
- Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL, USA
| | - Karthik Ghosh
- Breast Clinic, General Internal Medicine, Mayo Clinic, Rochester, MN, USA
| | - Amy C Degnim
- Department of Surgery, Mayo Clinic, Rochester, MN, USA.
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10
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El Khoury M, Sanchez LM, Lalonde L, Trop I, David J, Mesurolle B. Is the outcome at surgery different when flat epithelial atypia and lobular neoplasia are found in association at biopsy? Br J Radiol 2017; 90:20160750. [PMID: 28118035 DOI: 10.1259/bjr.20160750] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE To assess the impact on the final outcome at surgery of flat epithelial atypia (FEA) when found concomitantly with lobular neoplasia (LN) in biopsy specimens compared with pure biopsy-proven FEA. METHODS The approval from the institutional review board of the CHUM (Centre Hospitalier Universitaire de Montréal) was obtained. A retrospective review of our database between 2009 and 2013 identified 81 females (mean age 54 years, range 38-90 years) with 81 FEA biopsy-proven lesions. These were pure or associated with LN only in 59/81 (73%) and 22/81 (27%) cases, respectively. Overall, 57/81 (70%) patients underwent surgery and 24/81 (30%) patients underwent mammographic surveillance with a mean follow-up of 36 months. RESULTS FEA presented more often as microcalcifications in 68/81 (84%) patients and were mostly amorphous in 49/68 (72%). After excluding radio pathologically discordant cases, pure FEA proved to be malignant at surgery in 1/41 (2%; 95% confidence interval 0.06-12.9). There was no statistically significant difference in the upgrade to malignancy whether FEA lesions were pure or associated to LN at biopsy (p = 0.4245); however, when paired in biopsy specimens, these lesions were more frequently associated with atypical ductal hyperplasia (ADH) at surgery than with pure FEA (p = 0.012). CONCLUSION Our results show a 2% upgrade rate to malignancy of pure FEA lesions. When FEA is found in association with LN at biopsy, surgical excision yields more frequently ADH than pure FEA thus warranting close surveillance or even surgical excision. Advances in knowledge: The association of LN with FEA at biopsy was more frequently associated with ADH at surgery than with pure FEA. If a biopsy-proven FEA lesion is deemed concordant with the imaging finding, when paired with LN at biopsy, careful surveillance or even surgical excision is suggested.
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Affiliation(s)
- Mona El Khoury
- 1 Department of Radiology, Breast Centre, Centre Hospitalier Universitaire de Montréal, Montreal, QC, Canada
| | - Lilia Maria Sanchez
- 2 Department of Pathology, Centre Hospitalier Universitaire de Montréal, Montreal, QC, Canada
| | - Lucie Lalonde
- 1 Department of Radiology, Breast Centre, Centre Hospitalier Universitaire de Montréal, Montreal, QC, Canada
| | - Isabelle Trop
- 1 Department of Radiology, Breast Centre, Centre Hospitalier Universitaire de Montréal, Montreal, QC, Canada
| | - Julie David
- 1 Department of Radiology, Breast Centre, Centre Hospitalier Universitaire de Montréal, Montreal, QC, Canada
| | - Benoît Mesurolle
- 3 Department of Radiology, Cedar Breast Centre, McGill University Health Center, Montreal, QC, Canada
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11
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M T, A P, F G, D S, S Z, M S. Positive predictive value of breast lesions of uncertain malignant potential (B3): Can we identify high risk patients? The value of a multidisciplinary team and implications in the surgical treatment. Surg Oncol 2016; 25:119-22. [PMID: 27312039 DOI: 10.1016/j.suronc.2016.04.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 03/16/2016] [Accepted: 04/11/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND AIM The use of conventional needle core biopsy for palpable masses and vacuum-assisted needle core biopsy for microcalcifications has significantly increased the preoperative diagnosis rate, but the strategy for those patients with lesions of uncertain malignant potential (B3) still remains controversial. The aim of this study was to evaluate the positive predictive value (PPV) of the malignancy of B3 lesions in order to establish their correct management in the setting of a multidisciplinary care pathway. METHODS Data from all patients who had a Needle Core Biopsy (NCB) or a Vacuum-Assisted Needle Core Biopsy (VANCB) between 2005 and 2014 were retrospectively collected and analyzed. The B3 patients were discussed by the Multidisciplinary Team (MDT) deciding for surgery or for follow-up, based on a score in which clinical-instrumental factors and environmental factors were considered. The PPV of malignancy of all surgically excised B3 lesions was calculated. RESULTS One hundred and seventy-eight B3 NCBs were included in the study and Atypical Epithelial Proliferation of Ductal Type (AEDPT) was the most represented subcategory. The final histopathology report of the 128 patients operated on showed 94 benign and 34 malignant lesions. The PPV of B3 patients referred to surgery was 26.5%. CONCLUSION B3 patients should be evaluated by a breast MDT in order to make the right therapeutic decision, in particular for patients with contrasting clinical/diagnostic findings. Larger prospective studies are required to assess the definitive PPV of each B3 subcategory.
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Affiliation(s)
- Taffurelli M
- Department of Woman, Child and Urological Diseases, Policlinico S.Orsola-Malpighi, University of Bologna, Italy
| | - Pellegrini A
- Department of Woman, Child and Urological Diseases, Policlinico S.Orsola-Malpighi, University of Bologna, Italy.
| | - Ghignone F
- Department of Woman, Child and Urological Diseases, Policlinico S.Orsola-Malpighi, University of Bologna, Italy
| | - Santini D
- Department of Experimental, Diagnostic and Specialistic Medicine, Policlinico S. Orsola-Malpighi, University of Bologna, Italy
| | - Zanotti S
- Department of Woman, Child and Urological Diseases, Policlinico S.Orsola-Malpighi, University of Bologna, Italy
| | - Serra M
- Department of Woman, Child and Urological Diseases, Policlinico S.Orsola-Malpighi, University of Bologna, Italy
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Berry JS, Trappey AF, Vreeland TJ, Pattyn AR, Clifton GT, Berry EA, Schneble EJ, Kirkpatrick AD, Saenger JS, Peoples GE. Analysis of Clinical and Pathologic Factors of Pure, Flat Epithelial Atypia on Core Needle Biopsy to Aid in the Decision of Excision or Observation. J Cancer 2016; 7:1-6. [PMID: 26722353 PMCID: PMC4679374 DOI: 10.7150/jca.12781] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 08/30/2015] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND The optimal treatment of flat epithelial atypia (FEA) found on breast core needle biopsy (CNB) is controversial. We performed a retrospective review of our institutional experience with FEA to determine if excisional biopsy may be deferred. METHODS Surgical records from 2009 to 2012 were reviewed for FEA diagnosis. After exclusion for concomitant lesions, CNBs of pure FEA were classified using a previously agreed upon descriptor of "focal" versus "prominent". Data was analyzed with the Fisher's Exact and Student-t test as appropriate. RESULTS Of 71 CNBs evaluated, pure FEA was identified on 27 CNBs. Final excisional biopsy was benign in 24 of 27 cases (88%) with associated ductal carcinoma in-situ (DCIS) in 3 of 27 cases (11%). Eighteen of 27 (67%) CNBs were classified as focal while 9 (33%) were described as prominent. Zero of the 18 focal patients had a malignancy compared to 3 of the 9 in the prominent group (0% vs 33%, p=0.02). Of the 27 pure FEA CNBs, 6 patients had a personal history of breast carcinoma, five DCIS and one invasive ductal carcinoma. No malignancies were found in the 21 patients without a personal history of breast carcinoma versus three in the patients with a positive history (0/21 v 3/6, p=0.007). CONCLUSIONS Our data suggests those women who have adequate sampling and sectioning of CNBs, with focal, pure FEA on pathology, and are without a personal history of breast cancer may undergo a period of imaging surveillance. Conversely, patients with a history of breast cancer or pure, prominent FEA on CNB disease should proceed to excisional biopsy.
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Affiliation(s)
- John S Berry
- 1. Department of Surgery, San Antonio Military Medical Center, Fort Sam Houston, TX
| | - Alfred F Trappey
- 1. Department of Surgery, San Antonio Military Medical Center, Fort Sam Houston, TX
| | - Timothy J Vreeland
- 1. Department of Surgery, San Antonio Military Medical Center, Fort Sam Houston, TX
| | - Adam R Pattyn
- 2. Department of Surgery, Madigan Military Medical Center, Fort Lewis, WA
| | - Guy T Clifton
- 3. Department of Surgical Oncology, University of Texas, M.D. Anderson Cancer Center, Houston, TX
| | - Elizabeth A Berry
- 4. Qwest Care Associates, Intensive Care Unit, Metropolitan Methodist Hospital, San Antonio, TX
| | - Erika J Schneble
- 1. Department of Surgery, San Antonio Military Medical Center, Fort Sam Houston, TX
| | - Aaron D Kirkpatrick
- 5. Department of Radiology, San Antonio Military Medical Center, Fort Sam Houston, TX
| | - Jeffrey S Saenger
- 6. Department of Pathology, San Antonio Military Medical Center, Fort Sam Houston, TX
| | - George E Peoples
- 7. Director, Cancer Vaccine Development Program, San Antonio, TX, USA
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13
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Management of flat epithelial atypia on breast core biopsy may be individualized based on correlation with imaging studies. Mod Pathol 2015; 28:670-6. [PMID: 25412845 DOI: 10.1038/modpathol.2014.159] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 11/08/2022]
Abstract
Flat epithelial atypia of the breast commonly co-exists with atypical ductal hyperplasia, lobular neoplasia, and indolent forms of invasive carcinomas such as tubular carcinoma. Most patients with pure flat epithelial atypia on core biopsy undergo surgical excision to evaluate for carcinoma in the adjacent breast tissue. Studies to date have reported varying upgrade rates with most recommending follow-up excision. These studies have often lacked detailed radiographic correlation, central review by breast pathologists and information regarding the biology of the carcinomas identified upon excision. In this study, we report the frequency of upgrade to invasive carcinoma or ductal carcinoma in situ in excision specimens following a diagnosis of pure flat epithelial atypia on core biopsy. Radiographic correlation is performed for each case and grade/receptor status of detected carcinomas is reported. Seventy-three (73) core biopsies containing pure flat epithelial atypia were identified from our files, meeting inclusion criteria for the study. In the subsequent excision biopsies, five (7%) cases contained invasive carcinoma or ductal carcinoma in situ and seventeen (23%) contained atypical ductal hyperplasia or lobular neoplasia. All of the ductal carcinoma in situ cases with estrogen receptor results were estrogen receptor positive and intermediate grade. The invasive tumors were small (pT1a) hormone receptor-positive, HER2-negative, low-grade invasive ductal or tubular carcinomas with negative sentinel lymph-node biopsies. No upgrades were identified in the 14 patients who had all of their calcifications removed by the stereotactic core biopsy. Our rate of upgrade to carcinoma, once cases with discordant imaging are excluded, is at the lower end of the range reported in the literature. Given the low upgrade rate and indolent nature of the carcinomas associated with flat epithelial atypia, case management may be individualized based on clinical and radiographic findings. Excision may not be necessary for patients without remaining calcifications following core biopsy.
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Morrow M, Schnitt SJ, Norton L. Current management of lesions associated with an increased risk of breast cancer. Nat Rev Clin Oncol 2015; 12:227-38. [PMID: 25622978 DOI: 10.1038/nrclinonc.2015.8] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
High-risk breast lesions, which comprise benign lesions and in situ carcinomas (lobular carcinoma in situ and ductal carcinoma in situ), are clinically, morphologically, and biologically heterogeneous and are associated with an increased risk of invasive breast cancer development, albeit to varying degrees. Recognition and proactive management of such lesions can help to prevent progression to invasive disease, and might, therefore, reduce breast cancer incidence, morbidity, and mortality. However, this opportunity comes with the possibility of overdiagnosis and overtreatment, necessitating risk-based intervention. Notably, despite the progress in defining the molecular changes associated with carcinogenesis, alterations identifying the individuals with high-risk lesions that will progress to invasive carcinoma remain to be identified. Thus, until reproducible clinicopathological or molecular features predicting an individual's risk of breast cancer are found, management strategies must be defined by population-level risks as determined by models such as the Gail or IBIS models, as well as patient attitudes toward the risks and benefits of interventions. Herein, we review the contemporary approaches to diagnosis and management of high-risk breast lesions. Progress in this area will ultimately be dependent on the ability to individualize risk prediction through better definition of the key drivers in the carcinogenic process.
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Affiliation(s)
- Monica Morrow
- Breast Service, Department of Surgery, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
| | - Stuart J Schnitt
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA 02215, USA
| | - Larry Norton
- Breast Cancer Medicine Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA
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15
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Abstract
Diagnostics of high-risk breast lesions have increased these last years with the augmentation of breast percutaneous biopsies. They are lesions that confer an enlarged risk of breast cancer, either because of an increased probability of finding cancer after open surgery, a possible evolution toward in situ or invasive cancer, or because of an increased probability of developing breast cancer over the long term. Much progress has been made these last years in their histological diagnostic, classification and pathogenesis. Nevertheless, no consensus exists to date on the management of these "high-risk" lesions. In particular, surgical indications and follow-up modalities remain controversial for each histological type. In this review, the principal factors that could impact surgical decision and long-term follow-up are discussed with areas of controversy highlighted.
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16
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Prowler VL, Joh JE, Acs G, Kiluk JV, Laronga C, Khakpour N, Lee MC. Surgical excision of pure flat epithelial atypia identified on core needle breast biopsy. Breast 2014; 23:352-6. [DOI: 10.1016/j.breast.2014.01.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 01/02/2014] [Accepted: 01/19/2014] [Indexed: 11/30/2022] Open
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17
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Flat Ductal Intraepithelial Neoplasia 1A Diagnosed at Stereotactic Core Needle Biopsy: Is Excisional Biopsy Indicated? AJR Am J Roentgenol 2013; 200:682-8. [DOI: 10.2214/ajr.11.8090] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Mammotome biopsy under ultrasound control in the diagnostics and treatment of nodular breast lesions - own experience. POLISH JOURNAL OF SURGERY 2012; 84:242-6. [PMID: 22763299 DOI: 10.2478/v10035-012-0040-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Mammotome biopsy is an effective, minimally invasive, novel technique used in the verification of breast lesions.The aim of the study was to assess the value of ultrasound-guided vacuum-assisted core needle biopsy (mammotome biopsy) in the diagnostics and treatment of nodular breast lesions, considering own data.Material and methods. Analysis comprised 1183 mammotome biopsies under ultrasound control performed in 1177 female patients during the period between 2000 and 2010, at the Regional Clinic for Early Diagnostics and Treatment of Breast Lesions, I Chair and Department of General Surgery, Jagiellonian University, Collegium Medicum.Results. The average patient age amounted to 41.7 years. The size of the investigated lesions ranged between 4 and 65 mm (mean - 12 mm). The histopathological examination result was as follows: fibrocystic lesions (n=285), adenofibroma (n=477), adenosis sclerosans (n=188), hyperplasia without atypy (n=58), phyllode tumor (n=2), papilloma (n=14), hamartoma (n=1), atypical hyperplasia (n=25), in situ ductal carcinoma (n=4), in situ lobular carcinoma (n=5), infiltrating ductal carcinoma (n=114), infiltrating lobular carcinoma (n=4), non-diagnostic result (n=6). The histopathological diagnosis was obtained in 99.5% of cases. Patients diagnosed with atypical hyperplasia or cancer were qualified for surgery, according to accepted standards. The presence of a hematoma was the most common complication after the biopsy, observed in 16.5% of patients.Conclusions. The obtained results confirmed the high value of ultrasound-guided biopsies in the diagnostics of nodular breast lesions. The method is safe, minimally invasive, with few complications, providing a good cosmetic effect. In case of benign lesions with a diameter of less than 15 mm the mammotome biopsy enables to completely excise the lesions, being an alternative to open surgical biopsies. The mammotome biopsy should become the method of choice considering the diagnostics of nodular breast lesions.
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Ultrasound-guided vacuum-assisted core biopsy in the diagnosis and treatment of focal lesions of the breast - own experience. Wideochir Inne Tech Maloinwazyjne 2012; 8:63-8. [PMID: 23630556 PMCID: PMC3627158 DOI: 10.5114/wiitm.2011.31630] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 09/19/2012] [Accepted: 10/09/2012] [Indexed: 12/26/2022] Open
Abstract
Introduction Vacuum-assisted core biopsy (VACB) guided by ultrasound is a minimally invasive method used in diagnosis and treatment of breast focal lesions. Vacuum-assisted core biopsy is an interesting minimally invasive alternative to open surgical biopsy. Aim To assess the value of ultrasound-guided vacuum-assisted core biopsy in the diagnosis and treatment of breast focal lesions. Material and methods In the period 2009-2010, 397 ultrasound-guided vacuum-assisted core biopsies were performed. Mean age of the patients was 41.7 years (18-92 years), and size of the lesions ranged from 3 mm to 65 mm, mean size being 12 mm. All women with diagnosed atypical ductal hyperplasia or cancer were qualified for surgery. The patients with histopathologically benign lesions were under follow-up. Results Samples sufficient for histopathological examination were obtained from 394 cases (99.2%). Of all 397 lesions, 293 (73.7%) were diagnosed as benign, there were 6 (1.6%) cases of atypical ductal hyperplasia and 98 (24.7%) malignant lesions. Three hundred and sixty-nine lesions were below 15 mm in diameter, of which 339 (91.9%) were totally removed during the VACB. Conclusions The results obtained confirm high efficiency of ultrasound-guided VACB in the differential diagnosis of breast focal lesions, including impalpable ones. It is a safe method with a low complication rate. In the case of benign lesions with a diameter not exceeding 15 mm, it allows one to excise the whole lesion and is a very good alternative to an open surgical biopsy. Vacuum-assisted core biopsy should be a standard and the method of choice in diagnosing breast lesions.
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Bianchi S, Bendinelli B, Castellano I, Piubello Q, Renne G, Cattani MG, Di Stefano D, Carrillo G, Laurino L, Bersiga A, Giardina C, Dante S, Di Loreto C, Quero C, Antonacci CM, Palli D. Morphological parameters of flat epithelial atypia (FEA) in stereotactic vacuum-assisted needle core biopsies do not predict the presence of malignancy on subsequent surgical excision. Virchows Arch 2012; 461:405-17. [PMID: 22941400 DOI: 10.1007/s00428-012-1279-y] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 04/26/2012] [Accepted: 06/27/2012] [Indexed: 10/27/2022]
Abstract
Flat epithelial atypia (FEA) may represent the earliest precursor of low-grade breast cancer and often coexists with more advanced atypical proliferative breast lesions such as atypical ductal hyperplasia (ADH) and lobular intraepithelial neoplasia (LIN). The present study aims to investigate the association between morphological parameters of FEA and presence of malignancy at surgical excision (SE) and the clinical significance of the association of FEA with ADH and/or LIN. This study included 589 cases of stereotactic 11-gauge vacuum-assisted needle core biopsy (VANCB), reporting a diagnosis of FEA, ADH or LIN with subsequent SE from 14 pathology departments in Italy. Available slides were reviewed, with 114 (19.4 %) showing a malignant outcome at SE. Among the 190 cases of pure FEA, no statistically significant association emerged between clinical-pathological parameters of FEA and risk of malignancy. Logistic regression analyses showed an increased risk of malignancy according to the extension of ADH among the 275 cases of FEA associated with ADH (p = 0.004) and among the 34 cases of FEA associated with ADH and LIN (p = 0.02). In the whole series, a statistically significant increased malignancy risk emerged according to mammographic R1-R3/R4-R5 categories (OR = 1.56; p = 0.04), extension (OR = 1.24; p = 0.04) and grade (OR = 1.94; p = 0.004) of cytological atypia of FEA. The presence of ADH was associated with an increased malignancy risk (OR = 2.85; p < 0.0001). Our data confirm the frequent association of FEA with ADH and/or LIN. A diagnosis of pure FEA on VANCB carries a 9.5 % risk of concurrent malignancy and thus warrants follow-up excision because none of the clinical-pathological parameters predicts which cases will present carcinoma on SE.
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Affiliation(s)
- Simonetta Bianchi
- Division of Pathological Anatomy, Department of Medical and Surgical Critical Care, AOU Careggi, University of Florence, Largo GA Brambilla 3, 50134 Florence, Italy.
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Columnar cell lesions on breast needle biopsies: is surgical excision necessary? A systematic review. Ann Surg 2012; 255:259-65. [PMID: 21989373 DOI: 10.1097/sla.0b013e318233523f] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE This systematic review was conducted to provide treatment recommendations for patients with a diagnosis of columnar cell lesions (CCLs) in a breast core needle biopsy (CNB). BACKGROUND CCLs are putative breast cancer precursors and are often associated with (in situ) carcinoma in excision specimens. Although several studies reported on the progression risk and underestimation rate of a CNB diagnosis of CCL, there is no consensus regarding optimal clinical management in this context. METHODS We searched MEDLINE, Embase, and Cochrane databases from 1990 to October 2010 for studies on patients with a CNB diagnosis of CCL without atypia, CCL with atypia and atypical ductal hyperplasia associated with CCL followed by surgical excision or clinical follow up. RESULTS Of 1759 selected articles, 24 were included in this review. The pooled underestimation risks for (in situ) carcinoma were as follow: CCL without atypia 1.5% (95% confidence interval [CI] 0.6%-4%), CCL with atypia 9% (95% CI: 5%-14%), and atypical ductal hyperplasia associated with CCL 20% (95% CI: 13%-28%), based on the whole groups of patients with a CNB. Studies including CCLs with long-term clinical follow-up showed a trend toward a limited elevated breast cancer risk. CONCLUSIONS On the basis of the (in situ) carcinoma underestimation rates of patients with a CNB diagnosis of CCL with atypia and atypical ductal hyperplasia associated with CCL, surgical excision should be considered. For CCL without atypia, more studies with a long-term follow-up are required, but so far, surgical excision biopsy does not seem to be necessary.
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