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Published in: Breast Cancer Research and Treatment 2/2016

Open Access 01-09-2016 | Review

First International Consensus Conference on lesions of uncertain malignant potential in the breast (B3 lesions)

Authors: Christoph J. Rageth, Elizabeth AM O’Flynn, Christopher Comstock, Claudia Kurtz, Rahel Kubik, Helmut Madjar, Domenico Lepori, Gert Kampmann, Alexander Mundinger, Astrid Baege, Thomas Decker, Stefanie Hosch, Christoph Tausch, Jean-François Delaloye, Elisabeth Morris, Zsuzsanna Varga

Published in: Breast Cancer Research and Treatment | Issue 2/2016

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Abstract

The purpose of this study is to obtain a consensus for the therapy of B3 lesions. The first International Consensus Conference on lesions of uncertain malignant potential in the breast (B3 lesions) including atypical ductal hyperplasia (ADH), flat epithelial atypia (FEA), classical lobular neoplasia (LN), papillary lesions (PL), benign phyllodes tumors (PT), and radial scars (RS) took place in January 2016 in Zurich, Switzerland organized by the International Breast Ultrasound School and the Swiss Minimally Invasive Breast Biopsy group—a subgroup of the Swiss Society of Senology. Consensus recommendations for the management and follow-up surveillance of these B3 lesions were developed and areas of research priorities were identified. The consensus recommendation for FEA, LN, PL, and RS diagnosed on core needle biopsy or vacuum-assisted biopsy (VAB) is to therapeutically excise the lesion seen on imaging by VAB and no longer by open surgery, with follow-up surveillance imaging for 5 years. The consensus recommendation for ADH and PT is, with some exceptions, therapeutic first-line open surgical excision. Minimally invasive management of selected B3 lesions with therapeutic VAB is acceptable as an alternative to first-line surgical excision.
Footnotes
1
Focal ADH is not defined in the WHO classification and mentioning the exact dimension of ADH lesions below 2 mm is not mandatory. However recent literature data suggest, that ADH lesions (less than 2 mm in extension max. 2 cross sections) may not have to undergo surgical excision. These data need further validation.
 
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Metadata
Title
First International Consensus Conference on lesions of uncertain malignant potential in the breast (B3 lesions)
Authors
Christoph J. Rageth
Elizabeth AM O’Flynn
Christopher Comstock
Claudia Kurtz
Rahel Kubik
Helmut Madjar
Domenico Lepori
Gert Kampmann
Alexander Mundinger
Astrid Baege
Thomas Decker
Stefanie Hosch
Christoph Tausch
Jean-François Delaloye
Elisabeth Morris
Zsuzsanna Varga
Publication date
01-09-2016
Publisher
Springer US
Published in
Breast Cancer Research and Treatment / Issue 2/2016
Print ISSN: 0167-6806
Electronic ISSN: 1573-7217
DOI
https://doi.org/10.1007/s10549-016-3935-4

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