Nodular malignant melanoma and multiple squamous cell carcinomas in a patient treated by photochemotherapy for psoriasis

Abstract

We describe a patient suffering from psoriasis who developed a nodular malignant melanoma and three squamous cell carcinomas after treatment with psoralen and ultraviolet light A (PUVA). So far as we know this is the first report of invasive melanoma in a patient treated with this modality.