Retransplantation of a cardiac allograft inadvertently harvested from a donor with metastatic melanoma1

Donor-derived melanoma is easily transmitted through organ transplants and is highly aggressive in transplant recipients. The best treatment—withdrawal or reduction of immunosuppression—permits tumor rejection but risks allograft rejection. In recipients of nonrenal allografts, the prognosis is particularly grim, with transmission rates and mortality approaching 100%. Retransplantation has been proposed as a possible strategy but has never been performed for a cardiac allograft. This is the first report of cardiac retransplantation and only the second case of retransplantation of any nonrenal organ. Our patient received a heart transplant from a donor found to have occult metastatic melanoma at autopsy. He underwent retransplantation 17 days later. Close clinical and radiographic follow-up reveal no evidence of melanoma 22 months after transplantation. Based on the rapid development of donor-derived melanoma in previous reports, our patient is likely to remain free of donor cancer. Retransplantation and low-dose immunosuppression may have been lifesaving.