Milk of Calcium
Milk of calcium (MOC) is simply calcium oxalate crystals precipitated within the microcysts (acini) of the breast lobules. MOC has a very distinct mammographic appearance. It is a benign entity, and when seen and properly identified, it requires no further workup or follow-up. It is, however, important to recognize the proper initial evaluation of MOC so as to avoid misdiagnosis or potential unnecessary biopsies.This chapter, appearing in the section on calcifications, reviews the key imaging and clinical features, imaging protocols and pitfalls, differential diagnoses, and management recommendations for milk of calcium. Topics discussed include appropriate use of magnification views, hints to recognize the distinct appearance of milk of calcium, and management.