Global asymmetry in breast tissue is a form of asymmetrical breast density where at least one quadrant of a breast has a larger amount of fibroglandular density than the corresponding area in the contralateral breast. There is no mass, suspicious calcification, or architectural distortion.
This can occur from a number of causes:
- normal variation (most common) 2
- surgery +/- breast reduction to the opposite breast
- pseudoangiomatous stromal hyperplasia (PASH)
- 1. Paredes ES. Atlas of mammography. Lippincott Williams & Wilkins. (2007) ISBN:0781764335. Read it at Google Books - Find it at Amazon
- 2. D’Orsi CJ, Sickles EA, Mendelson EB, Morris EA, et al. ACR BI-RADS® Atlas, Breast Imaging Reporting and Data System. Reston, VA, American College of Radiology; 2013. ISBN:155903016X. Read it at Google Books - Find it at Amazon