Flat epithelial atypia and risk of breast cancer: A Mayo cohort study

BACKGROUND Based on its cytologic features, and its co‐occurrence with atypical hyperplasia and breast cancer, flat epithelial atypia (FEA) has been proposed as a precursor lesion on the pathway to the development of breast cancer. It is often referred to as an “atypical” or high‐risk lesion. Howeve...

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Veröffentlicht in:Cancer 2015-05, Vol.121 (10), p.1548-1555
Hauptverfasser: Said, Samar M., Visscher, Daniel W., Nassar, Aziza, Frank, Ryan D., Vierkant, Robert A., Frost, Marlene H., Ghosh, Karthik, Radisky, Derek C., Hartmann, Lynn C., Degnim, Amy C.
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container_end_page 1555
container_issue 10
container_start_page 1548
container_title Cancer
container_volume 121
creator Said, Samar M.
Visscher, Daniel W.
Nassar, Aziza
Frank, Ryan D.
Vierkant, Robert A.
Frost, Marlene H.
Ghosh, Karthik
Radisky, Derek C.
Hartmann, Lynn C.
Degnim, Amy C.
description BACKGROUND Based on its cytologic features, and its co‐occurrence with atypical hyperplasia and breast cancer, flat epithelial atypia (FEA) has been proposed as a precursor lesion on the pathway to the development of breast cancer. It is often referred to as an “atypical” or high‐risk lesion. However, to the authors' knowledge, the long‐term risk of breast cancer in women with FEA is undefined. METHODS Specimens with FEA were identified among excisional breast biopsies in the Mayo Clinic Benign Breast Disease Cohort, which includes 11,591 women who had benign biopsy findings at the Mayo Clinic in Rochester, Minnesota between 1967 and 2001. Breast cancer risk among subsets of patients with FEA and nonproliferative, proliferative, and atypical hyperplasia (AH) was assessed using standardized incidence ratios (SIRs) compared with the Iowa Surveillance, Epidemiology, and End Results registry. RESULTS FEA was identified in 282 women (2.4%); 130 had associated AH (46%) and 152 (54%) were classified as having proliferative disease without atypia (PDWA). With median follow‐up of 16.8 years, the SIR for breast cancer in patients with AH plus FEA was 4.74 (95% confidence interval [95% CI], 3.17‐6.81) versus 4.23 (95% CI, 3.44‐5.13) for those with AH without FEA (P = .59). The SIR for patients with PDWA plus FEA was 2.04 (95% CI, 1.23‐3.19) versus 1.90 (95% CI, 1.72‐2.09) for patients with PDWA without FEA (P = .76). CONCLUSIONS FEA is an uncommon finding in women with benign breast disease. FEA does not appear to convey an independent risk of breast cancer beyond that of the associated PDWA or AH. Cancer 2015;121:1548–1555. © 2015 American Cancer Society. Based on its cytologic features, and its co‐occurrence with atypical hyperplasia and breast cancer, flat epithelial atypia has been proposed as a precursor lesion on the pathway to the development of breast cancer. However, it appears to be a benign proliferative finding of the breast that does not convey an independent risk of future breast cancer.
doi_str_mv 10.1002/cncr.29243
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It is often referred to as an “atypical” or high‐risk lesion. However, to the authors' knowledge, the long‐term risk of breast cancer in women with FEA is undefined. METHODS Specimens with FEA were identified among excisional breast biopsies in the Mayo Clinic Benign Breast Disease Cohort, which includes 11,591 women who had benign biopsy findings at the Mayo Clinic in Rochester, Minnesota between 1967 and 2001. Breast cancer risk among subsets of patients with FEA and nonproliferative, proliferative, and atypical hyperplasia (AH) was assessed using standardized incidence ratios (SIRs) compared with the Iowa Surveillance, Epidemiology, and End Results registry. RESULTS FEA was identified in 282 women (2.4%); 130 had associated AH (46%) and 152 (54%) were classified as having proliferative disease without atypia (PDWA). With median follow‐up of 16.8 years, the SIR for breast cancer in patients with AH plus FEA was 4.74 (95% confidence interval [95% CI], 3.17‐6.81) versus 4.23 (95% CI, 3.44‐5.13) for those with AH without FEA (P = .59). The SIR for patients with PDWA plus FEA was 2.04 (95% CI, 1.23‐3.19) versus 1.90 (95% CI, 1.72‐2.09) for patients with PDWA without FEA (P = .76). CONCLUSIONS FEA is an uncommon finding in women with benign breast disease. FEA does not appear to convey an independent risk of breast cancer beyond that of the associated PDWA or AH. Cancer 2015;121:1548–1555. © 2015 American Cancer Society. Based on its cytologic features, and its co‐occurrence with atypical hyperplasia and breast cancer, flat epithelial atypia has been proposed as a precursor lesion on the pathway to the development of breast cancer. However, it appears to be a benign proliferative finding of the breast that does not convey an independent risk of future breast cancer.</description><identifier>ISSN: 0008-543X</identifier><identifier>EISSN: 1097-0142</identifier><identifier>DOI: 10.1002/cncr.29243</identifier><identifier>PMID: 25639678</identifier><language>eng</language><publisher>United States</publisher><subject>Adult ; Aged ; Aged, 80 and over ; atypia ; Biopsy - methods ; breast cancer ; Breast Neoplasms - diagnosis ; Breast Neoplasms - epidemiology ; Breast Neoplasms - pathology ; Breast Neoplasms - surgery ; Cohort Studies ; columnar cell lesion of breast ; Epithelial Cells - pathology ; Female ; flat epithelial atypia ; Humans ; Hyperplasia - diagnosis ; Hyperplasia - epidemiology ; Incidence ; Iowa - epidemiology ; Middle Aged ; Minnesota - epidemiology ; Odds Ratio ; Precancerous Conditions - diagnosis ; Precancerous Conditions - epidemiology ; Precancerous Conditions - pathology ; Precancerous Conditions - surgery ; proliferative disease without atypia ; Risk Assessment ; Risk Factors ; SEER Program</subject><ispartof>Cancer, 2015-05, Vol.121 (10), p.1548-1555</ispartof><rights>2015 American Cancer Society</rights><rights>2015 American Cancer Society.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c5233-6e922aea0b5289b388129a1ccb3eaf338f3d47679bc87b160e948738be1760193</citedby><cites>FETCH-LOGICAL-c5233-6e922aea0b5289b388129a1ccb3eaf338f3d47679bc87b160e948738be1760193</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fcncr.29243$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fcncr.29243$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,315,781,785,886,1418,1434,27929,27930,45579,45580,46414,46838</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25639678$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Said, Samar M.</creatorcontrib><creatorcontrib>Visscher, Daniel W.</creatorcontrib><creatorcontrib>Nassar, Aziza</creatorcontrib><creatorcontrib>Frank, Ryan D.</creatorcontrib><creatorcontrib>Vierkant, Robert A.</creatorcontrib><creatorcontrib>Frost, Marlene H.</creatorcontrib><creatorcontrib>Ghosh, Karthik</creatorcontrib><creatorcontrib>Radisky, Derek C.</creatorcontrib><creatorcontrib>Hartmann, Lynn C.</creatorcontrib><creatorcontrib>Degnim, Amy C.</creatorcontrib><title>Flat epithelial atypia and risk of breast cancer: A Mayo cohort study</title><title>Cancer</title><addtitle>Cancer</addtitle><description>BACKGROUND Based on its cytologic features, and its co‐occurrence with atypical hyperplasia and breast cancer, flat epithelial atypia (FEA) has been proposed as a precursor lesion on the pathway to the development of breast cancer. It is often referred to as an “atypical” or high‐risk lesion. However, to the authors' knowledge, the long‐term risk of breast cancer in women with FEA is undefined. METHODS Specimens with FEA were identified among excisional breast biopsies in the Mayo Clinic Benign Breast Disease Cohort, which includes 11,591 women who had benign biopsy findings at the Mayo Clinic in Rochester, Minnesota between 1967 and 2001. Breast cancer risk among subsets of patients with FEA and nonproliferative, proliferative, and atypical hyperplasia (AH) was assessed using standardized incidence ratios (SIRs) compared with the Iowa Surveillance, Epidemiology, and End Results registry. RESULTS FEA was identified in 282 women (2.4%); 130 had associated AH (46%) and 152 (54%) were classified as having proliferative disease without atypia (PDWA). With median follow‐up of 16.8 years, the SIR for breast cancer in patients with AH plus FEA was 4.74 (95% confidence interval [95% CI], 3.17‐6.81) versus 4.23 (95% CI, 3.44‐5.13) for those with AH without FEA (P = .59). The SIR for patients with PDWA plus FEA was 2.04 (95% CI, 1.23‐3.19) versus 1.90 (95% CI, 1.72‐2.09) for patients with PDWA without FEA (P = .76). CONCLUSIONS FEA is an uncommon finding in women with benign breast disease. FEA does not appear to convey an independent risk of breast cancer beyond that of the associated PDWA or AH. Cancer 2015;121:1548–1555. © 2015 American Cancer Society. Based on its cytologic features, and its co‐occurrence with atypical hyperplasia and breast cancer, flat epithelial atypia has been proposed as a precursor lesion on the pathway to the development of breast cancer. However, it appears to be a benign proliferative finding of the breast that does not convey an independent risk of future breast cancer.</description><subject>Adult</subject><subject>Aged</subject><subject>Aged, 80 and over</subject><subject>atypia</subject><subject>Biopsy - methods</subject><subject>breast cancer</subject><subject>Breast Neoplasms - diagnosis</subject><subject>Breast Neoplasms - epidemiology</subject><subject>Breast Neoplasms - pathology</subject><subject>Breast Neoplasms - surgery</subject><subject>Cohort Studies</subject><subject>columnar cell lesion of breast</subject><subject>Epithelial Cells - pathology</subject><subject>Female</subject><subject>flat epithelial atypia</subject><subject>Humans</subject><subject>Hyperplasia - diagnosis</subject><subject>Hyperplasia - epidemiology</subject><subject>Incidence</subject><subject>Iowa - epidemiology</subject><subject>Middle Aged</subject><subject>Minnesota - epidemiology</subject><subject>Odds Ratio</subject><subject>Precancerous Conditions - diagnosis</subject><subject>Precancerous Conditions - epidemiology</subject><subject>Precancerous Conditions - pathology</subject><subject>Precancerous Conditions - surgery</subject><subject>proliferative disease without atypia</subject><subject>Risk Assessment</subject><subject>Risk Factors</subject><subject>SEER Program</subject><issn>0008-543X</issn><issn>1097-0142</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkU1LHEEQhpugxHXjJT9A-ijCmP6a6W4Pgix-gSYQEvDW1PTWZNvMTq_ds8r8-4yukXgxp6Koh6eqeAn5zNkRZ0x88Z1PR8IKJT-QCWdWF4wrsUUmjDFTlEre7pDdnO_GVotSfiQ7oqykrbSZkLPzFnqKq9AvsA3QUuiHVQAK3ZymkH_T2NA6IeSeeug8pmN6Sm9giNTHRUw9zf16Pnwi2w20Gfde6pT8PD_7Mbssrr9dXM1OrwtfCimLCq0QgMDqUhhbS2O4sMC9ryVCI6Vp5FzpStvaG13ziqFVRktTI9cV41ZOycnGu1rXS5x77PoErVulsIQ0uAjBvZ10YeF-xQenlFC81KPg4EWQ4v0ac--WIXtsW-gwrrPjelwndSnV_9HKsBEvx8-m5HCD-hRzTti8XsSZe4rIPUXkniMa4f1_f3hF_2YyAnwDPIYWh3dUbvZ19n0j_QO7w5sp</recordid><startdate>20150515</startdate><enddate>20150515</enddate><creator>Said, Samar M.</creator><creator>Visscher, Daniel W.</creator><creator>Nassar, Aziza</creator><creator>Frank, Ryan D.</creator><creator>Vierkant, Robert A.</creator><creator>Frost, Marlene H.</creator><creator>Ghosh, Karthik</creator><creator>Radisky, Derek C.</creator><creator>Hartmann, Lynn C.</creator><creator>Degnim, Amy C.</creator><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7T2</scope><scope>7U2</scope><scope>C1K</scope><scope>5PM</scope></search><sort><creationdate>20150515</creationdate><title>Flat epithelial atypia and risk of breast cancer: A Mayo cohort study</title><author>Said, Samar M. ; 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It is often referred to as an “atypical” or high‐risk lesion. However, to the authors' knowledge, the long‐term risk of breast cancer in women with FEA is undefined. METHODS Specimens with FEA were identified among excisional breast biopsies in the Mayo Clinic Benign Breast Disease Cohort, which includes 11,591 women who had benign biopsy findings at the Mayo Clinic in Rochester, Minnesota between 1967 and 2001. Breast cancer risk among subsets of patients with FEA and nonproliferative, proliferative, and atypical hyperplasia (AH) was assessed using standardized incidence ratios (SIRs) compared with the Iowa Surveillance, Epidemiology, and End Results registry. RESULTS FEA was identified in 282 women (2.4%); 130 had associated AH (46%) and 152 (54%) were classified as having proliferative disease without atypia (PDWA). With median follow‐up of 16.8 years, the SIR for breast cancer in patients with AH plus FEA was 4.74 (95% confidence interval [95% CI], 3.17‐6.81) versus 4.23 (95% CI, 3.44‐5.13) for those with AH without FEA (P = .59). The SIR for patients with PDWA plus FEA was 2.04 (95% CI, 1.23‐3.19) versus 1.90 (95% CI, 1.72‐2.09) for patients with PDWA without FEA (P = .76). CONCLUSIONS FEA is an uncommon finding in women with benign breast disease. FEA does not appear to convey an independent risk of breast cancer beyond that of the associated PDWA or AH. Cancer 2015;121:1548–1555. © 2015 American Cancer Society. Based on its cytologic features, and its co‐occurrence with atypical hyperplasia and breast cancer, flat epithelial atypia has been proposed as a precursor lesion on the pathway to the development of breast cancer. However, it appears to be a benign proliferative finding of the breast that does not convey an independent risk of future breast cancer.</abstract><cop>United States</cop><pmid>25639678</pmid><doi>10.1002/cncr.29243</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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source MEDLINE; Access via Wiley Online Library; EZB-FREE-00999 freely available EZB journals; Wiley Online Library (Open Access Collection); Alma/SFX Local Collection
subjects Adult
Aged
Aged, 80 and over
atypia
Biopsy - methods
breast cancer
Breast Neoplasms - diagnosis
Breast Neoplasms - epidemiology
Breast Neoplasms - pathology
Breast Neoplasms - surgery
Cohort Studies
columnar cell lesion of breast
Epithelial Cells - pathology
Female
flat epithelial atypia
Humans
Hyperplasia - diagnosis
Hyperplasia - epidemiology
Incidence
Iowa - epidemiology
Middle Aged
Minnesota - epidemiology
Odds Ratio
Precancerous Conditions - diagnosis
Precancerous Conditions - epidemiology
Precancerous Conditions - pathology
Precancerous Conditions - surgery
proliferative disease without atypia
Risk Assessment
Risk Factors
SEER Program
title Flat epithelial atypia and risk of breast cancer: A Mayo cohort study
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