ARRS Case of the Week


Case Author: Colleen Neal, MD, University of Michigan Health System


51-year-old woman with history of lobular carcinoma in situ of the left breast undergoing annual mammography.

Imaging Findings

Laterally exaggerated craniocaudal (A) and spot mediolateral oblique (B) mammograms show an irregular mass with spiculated margins (arrow) in the upper outer quadrant of the right breast. There are no associated calcifications. Ultrasound image of the upper outer quadrant (C) shows an irregular, hypoechoic, antiparallel mass with spiculated margins and posterior acoustic shadowing (arrow).


This page is updated with new content weekly. It was last updated on June 1, 2020.

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