[The primary non-Hodgkin lymphoma of the mammary gland].

Basing on an observation made by the authors, the article describes the diagnostic and therapeutic criteria in primary non-Hodgkin lymphoma of the mamma. Despite high malignancy, especially of the lymphoblastic-centroblastic lymphoma and of the immunoblastic lymphoma (Stein, 1974), permanent healing can be achieved via early surgical treatment and subsequent radiotherapy. In the case under discussion, the same tumour reappeared in the contralateral breast after an interval of five years. Since it was possible to exclude a generalisation, it must be assumed that the patient in question had a primary non-Hodgkin lymphoma of the immunoblastic type in both mammae after a period of five years.