[Malignant melanoma in lupus (tuberculosis cutis luposa)]

We report on a 72 years old man showing a strikingly fast spreading malignant melanoma developing on a lupus vulgaris which had existed since childhood. The coincidence of both diseases is obviously extremely rare. A pathogenetic relationship between melanoma and lupus vulgaris, such as claimed for carcinoma in lupo, especially after X-ray irradiation, is not inferable.