Multiple primary malignancies in a renal transplant patient.

Organ transplantation and the use of immunosuppressive therapy has been associated with an increased incidence of malignancy. We report the case of a long-term renal transplant recipient who developed concomitant skin cancers, non-Hodgkin's lymphoma, and malignant fibrous histiocytoma. The development of three seemingly unrelated cancers in the same patient illustrates the favorable host environment in transplant patients for the development of malignancies.