Plasma cell myeloma in a patient with a cutaneous T-cell lymphoma

A case is reported, believed to be the first, of a patient with a long-standing cutaneous T-cell lymphoma, in whom disseminated plasma cell myeloma subsequently developed shortly before the patient died. It is postulated that, rather than to a chance association, the second B-cell neoplasm evolved under the sustained inducer-cell activity of the malignant lymphocytes of the cutaneous T-cell lymphoma.