[23-year course of lymphomatoid papulosis with transition into T-cell cutaneous lymphoma].

A 63-year old patient who had suffered from mild lymphomatoid papulosis with periods of relapse and spontaneous remissions is presented. After 23 years of that chronic dermatosis he developed a malignant lymphoma covering skin, lymph nodes and internal organs, which was confirmed by histopathological examination. Despite intensive chemo and X-ray therapy the patient died. The importance of continuous follow-up of usually benign lymphomatoid papulosis is stressed.