B3

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B3

An abbreviation commonly used by histopathologists in the UK for a  diagnostic spectrum of lesions for which future behaviour cannot be assessed. Simplistically, B3 = equivocal/atypia—i.e., neither benign (B2) nor frankly malignant (B5).

B3 pathologies
Atypical ductal hyperplasia, atypical lobular hyperplasia, columnar cell change with hyperplasia or atypia, intraductal papilloma.
References in periodicals archive ?
Meanwhile, the Teng-led Team B-3 had its victory come in contrasting fashion, squeaking out a 44-41 thriller over Team B-2, and a close 49-48 shave against Team B-1.
the second largest dairy product company in Japan, confirmed that its new probiotic ingredient, Bifidobacterium breve B-3, caused a significant reduction of body fat and modified metabolic function in adults with obese tendencies in a randomized, double-blind, parallel-controlled trial.
Real estate company Retail Properties of America Inc (NYSE:RPAI) stated on Wednesday that its board of directors unanimously recommended its shareholders to reject the unsolicited mini-tender offer for up to 75,000 shares of its class A, class B-2 and class B-3 common stock at USD8.50 per share by Lapis Investment Business Trust (Lapis) on 19 November 2012.
Using a high-performance liquid chromatographic method and mass spectrometry analysis, we successfully measured the absorption of orally administered procyanidin B-2 and procyanidin B-3 isolated from Cinnamonomi cortex (the bark of Cinnamomum cassia Blume) in the rat plasma.
Waiting just outside the center line at midcourt are B-3, B-4, B-5, and B-6 on one side and A-6 on the other side.