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.
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