Patient Data
Age: 53 years
Gender: Female
From the case:
Fibroadenoma: involuting with macrocalcification
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MLO

Circumscribed oval mass with a bizarre macrocalcification, which is similar to a fish bone.
Case Discussion
Classically involuting fibroadenomas may contain coarse, large "popcorn-like" macrocalcifications, that usually do not cause a diagnostic problem.