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Breast Biopsy Intensity and Findings Following Breast Cancer Screening in Women With and Without a Personal History of Breast Cancer.


ABSTRACT: Importance:There is little evidence on population-based harms and benefits of screening breast magnetic resonance imaging (MRI) in women with and without a personal history of breast cancer (PHBC). Objective:To evaluate biopsy rates and yield in the 90 days following screening (mammography vs magnetic resonance imaging with or without mammography) among women with and without a PHBC. Design, Setting, and Participants:Observational cohort study of 6 Breast Cancer Surveillance Consortium (BCSC) registries. Population-based sample of 812?164 women undergoing screening, 2003 through 2013. Exposures:A total of 2?048?994 digital mammography and/or breast MRI screening episodes (mammogram alone vs MRI?with or without?screening mammogram within 30 days). Main Outcomes and Measures:Biopsy intensity (surgical?greater than?core?greater than?fine-needle aspiration) and yield (invasive cancer greater than?ductal carcinoma in situ greater than?high-risk benign?greater than?benign) within 90 days of a screening episode. We computed age-adjusted rates of biopsy intensity (per 1000 screening episodes) and biopsy yield (per 1000 screening episodes with biopsies). Outcomes were stratified by PHBC and by BCSC 5-year breast cancer risk among women without PHBC. Results:We included 101?103 and 1?939?455 mammogram screening episodes in women with and without PHBC, respectively; MRI screening episodes included 3763 with PHBC and 4673 without PHBC. Age-adjusted core and surgical biopsy rates (per 1000 episodes) doubled (57.1; 95% CI, 50.3-65.1) following MRI compared with mammography (23.6; 95% CI, 22.4-24.8) in women with PHBC. Differences (per 1000 episodes) were even larger in women without PHBC: 84.7 (95% CI, 75.9-94.9) following MRI and 14.9 (95% CI, 14.7-15.0) following mammography episodes. Ductal carcinoma in situ and invasive biopsy yield (per 1000 episodes) was significantly higher following mammography compared with MRI episodes in women with PHBC (mammography, 404.6; 95% CI, 381.2-428.8; MRI, 267.6; 95% CI, 208.0-337.8) and nonsignificantly higher, but in the same direction, in women without PHBC (mammography, 279.3; 95% CI, 274.2-284.4; MRI, 214.6; 95% CI, 158.7-280.8). High-risk benign lesions were more commonly identified following MRI regardless of PHBC. Higher biopsy rates and lower cancer yield following MRI were not explained by increasing age or higher 5-year breast cancer risk. Conclusions and Relevance:Women with and without PHBC who undergo screening MRI experience higher biopsy rates coupled with significantly lower cancer yield findings following biopsy compared with screening mammography alone. Further work is needed to identify women who will benefit from screening MRI to ensure an acceptable benefit-to-harm ratio.

SUBMITTER: Buist DSM 

PROVIDER: S-EPMC5876894 | biostudies-other | 2018 Apr

REPOSITORIES: biostudies-other

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Breast Biopsy Intensity and Findings Following Breast Cancer Screening in Women With and Without a Personal History of Breast Cancer.

Buist Diana S M DSM   Abraham Linn L   Lee Christoph I CI   Lee Janie M JM   Lehman Constance C   O'Meara Ellen S ES   Stout Natasha K NK   Henderson Louise M LM   Hill Deirdre D   Wernli Karen J KJ   Haas Jennifer S JS   Tosteson Anna N A ANA   Kerlikowske Karla K   Onega Tracy T  

JAMA internal medicine 20180401 4


<h4>Importance</h4>There is little evidence on population-based harms and benefits of screening breast magnetic resonance imaging (MRI) in women with and without a personal history of breast cancer (PHBC).<h4>Objective</h4>To evaluate biopsy rates and yield in the 90 days following screening (mammography vs magnetic resonance imaging with or without mammography) among women with and without a PHBC.<h4>Design, setting, and participants</h4>Observational cohort study of 6 Breast Cancer Surveillanc  ...[more]

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