[Primary non-Hodgkin's lymphoma of the breast--report of 8 cases].

Eight cases of primary Non-Hodgkin's lymphoma (NHL) of the breast are reported. Almost all presented as a painless movable mass without nipple retraction, edema in the overlying skin, satellite skin nodules or bloody nipple discharge. Most of the cases belonged to B cell lymphoma. Wide local excision or simple mastectomy combined with chemotherapy or radiotherapy were adopted in the treatment of these patients. The average survival was 28 months. Since prognosis of NHL is worse than that of breast carcinoma and is easily misdiagnosed as breast cancer, it is important to take vigilance in the differential diagnosis.