Extraskeletal Ewing's sarcoma in a kidney transplant patient

Organ transplant recipients are prone to develop a variety of malignancies, most of which are encountered uncommonly in the general population. Approx imately 5% to 7% of these malignancies are sarcomas, of which most are Kapo si's sarcomas. Ewing's sarcoma is an extremely uncommon tumor in organ tran splant recipients, and only one case of skeletal Ewing's sarcoma has been r eported in the transplant literature. We present a case of extraskeletal Ew ing's sarcoma (EES) in a renal transplant patient. (C) 1999 by the National Kidney Foundation, Inc.