Adenoid cystic carcinoma of breast with metastasis: a case report and review of the literature.

Abstract

Adenoid cystic carcinoma of the breast is a rare tumor having a favorable prognosis. At this writing, less than 100 cases have been reported. A review of the literature discloses only six well-documented cases with associated distant metastases. The characteristic biological behavior of this tumor appears to be the development of distant metastasis without prior detectable invasion of axillary lymph nodes.