An adenoid cystic carcinoma primarily involving the breast. Three morphologic patterns are seen: cribriform, trabecular, and solid. The prognosis is excellent. The disease is adenoid cystic breast carcinoma (MONDO_0003185). Also known as: adenocystic breast carcinoma, adenocystic carcinoma of breast, adenocystic carcinoma of the breast, adenoid cystic carcinoma of breast, adenoid cystic carcinoma of the breast, breast adenoid cystic carcinoma, mammary adenocystic carcinoma, mammary adenoid cystic carcinoma.