[Primary non-Hodgkin's lymphomas of the breast. Report of two cases].

Non-hodgkin's lymphoma (NHL) represents 0.04 to 0.53% of all breast cancers. The clinical aspects and therapeutic models of the disease are a subject of debate. We report two cases of primary non-hodgkin's lymphoma of the breast in two patients aged respectively 37 and 57 years. The disease was revealed by breast nodules. Mammography demonstrated a benign cyst. The diagnosis of non-hodgkin's lymphoma was confirmed on histological examination of tumor biopsies. With chemotherapy, the course was favorable with 29 and 52 months follow-up respectively. This is rare tumor. The diagnosis is mainly histological. Chemotherapy is the principal therapeutic method.