[Kaposi's sarcoma in 2 patients after renal transplantation].

The authors present two cases of Kaposi's hemorrhagic sarcoma in renal transplant patients. The malignant condition appeared 28 and 34 months, respectively, after the transplant operation. There was and acceptable improvement of Kaposi's sarcoma in both patient with radiotherapy despite the fact that the patients continued on immunosuppression with bethametasone and azathioprine. One of the patients showed involvement of the small bowel wall with Kaposi's sarcoma at autopsy. The possible causes of the appearance of this neoplasm on these patients in discussed.