Post-renal Transplantation de novo Renal Cell Carcinoma in a Middle-aged Man.

Renal cell carcinoma is usually seen in the native kidney but may be seen in the renal allograft. We report a rare case of renal cell carcinoma in a 56-year-old renal allograft recipient who was transplanted for end-stage renal disease induced by analgesic nephropathy. This complication developed after 13 years of renal transplantation. Patient was investigated for hematuria and abdominal pain with a normal renal function. Computed tomography depicted a mass sized 9.0×7.3×6.8 cm that involved the upper pole of the transplant. There was no metastasis. The patient underwent radical allograft nephrectomy for the carcinoma that had extended up to the renal hilum. Histopathological examination revealed Furhman grade-1, clear cell variant, stage pT2 N0 M0. In the last visit, the patient was on maintenance hemodialysis via arterio-venous fistula and planned for cadaveric renal transplantation. Computed tomography could facilitate early diagnosis and proper management of patients with post-renal allograft renal cell carcinoma.