PEIR Digital Library

Welcome to the Pathology Education Informational Resource (PEIR) Digital Library, a multidisciplinary public access image database for use in medical education.

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RADIOLOGY: BREAST: Case# 33607: CYST WITH MILK OF CALCIUM. Close up from craniocaudal (first image) mammogram shows a cluster of amorphous calcifications. Close up from the compression upright lateral view of the same region (second image) shows multiple small concave crescents of calcification. Cysts within the breast may occasionaly contain small particles of calcium which settle to the dependant portion of the cyst. This appearance, known as "milk of calcium", confirms that a mammographic mass is a cyst.