[Metastatic malignant melanoma in treated non-Hodgkin's lymphoma]

Secondary cutaneous neoplasia, e.g. basal cell malignant carcinomas or squamous cell carcinomas, is frequently observed in patients with malignant lymphomas. The association between malignant lymphoma and secondary malignant melanoma has only been rarely reported. We describe a patient with a low-grade nodal B-cell lymphoma who, while on treatment with steroids and an alkylating agent, developed a malignant melanoma level IV which rapidly metastasized to lymph nodes involved by the malignant lymphoma.