MYCOSIS-FUNGOIDES FOLLOWING A CUTANEOUS B -CELL NON-HODGKINS-LYMPHOMA

Introduction. B-cell and T-cell lymphomas are seldom found associated. We report a new case with purely cutaneous lesions. Case-report. In 1 990, a 59-year old man was treated for cutaneous B-cell lymphoma with few lesions. One year later the patient developed a tumoral mycosis fu ngoides which soon recurred after whole body electrontherapy. Discussi on. The association of two lymphoid blood diseases of different phenot ypes is probably not coincidental. It might be related to a particular evolutive profile of T-cell lymphoma, and this leads us to discuss so me hypotheses concerning the physiopathology of lymphomas, and notably the cutaneous lymphomas.