Prognostic factors for residual occult disease in shave margins during partial mastectomy.

Purpose: Shave margins have been shown to decrease positive final margins in partial mastectomy. We investigated prognostic factors associated with residual disease in shave margins.

Methods: Patients with invasive breast carcinoma and ductal carcinoma in situ (DCIS) who had circumferential shave margins excised during lumpectomy were abstracted from a retrospective database from 2015 to 2018.

Primary sarcoid of the breast with incidental malignancy.

Breast sarcoidosis is rare and usually presents in patients with known sarcoid involving other organ systems. In the breast, sarcoidosis may mimic malignancy which must be excluded by core biopsy. We report a very unusual case of primary breast sarcoidosis with incidentally discovered breast carcinoma.