Evaluating the relationship between ductal carcinoma in situ, calcifications, and margin status in patients undergoing breast conserving surgery.

Background: Microcalcifications associated with ductal carcinoma in situ (DCIS-AMC) close to lumpectomy margins could be used as a surrogate for margin involvement and aid in decreasing margin re-excision. We sought to evaluate the histologic factors of DCIS-AMC near lumpectomy margins.

Methods: Women with DCIS treated with breast-conserving surgery (BCS) who had DCIS-AMC on surgical specimens were identified.