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Case 16 Answer
BI-RADS 4, Suspicious. The focal asymmetric density is associated with heterogeneous calcifications which are not present in the remainder of the breast tissue. These are not classic pleomorphic calcifications, and thus are not diagnostic of DCIS. However, they are mixed shapes and sizes, and because this is not a global process, these were considered suspicious.
A stereotactic biopsy yielded fibrocystic change.
What is the approximate positive biopsy rate that is recommended in mammography guidelines published by the ACR?