Coexistent non-Hodgkins lymphoma and ductal carcinoma breast: diagnosis on fine needle aspiration cytology.

Synchronous occurrance of multiple neoplastic processes is not very common, and the relationship between breast cancer with lymphoproliferative diseases is unusual as well. Furthermore, breast involvement by non-Hodgkins lymphoma is a rare event and primary breast non-Hodgkins lymphoma is even rarer. The authors take this opportunity to report a case of primary B-cell non-Hodgkins lymphoma breast occurring in association with invasive ductal carcinoma in a 47-year-old female for its rare synchronous association.