Ureteral nephrogenic adenoma in a renal allograft patient

Abstract

A 56-year-old male who had renal transplants at the age of 34 and 49 years, presented with painless gross hematuria six years after the second renal transplantation. An abdominal computed tomography scan revealed diffuse wall thickening of the distal ureter of the failed first allograft and a bulging lesion about 1.2 cm in size on the lower pole of the right native kidney. Both lesions were suspected for tumors, but they showed a ureteral nephrogenic adenoma and a renal hemorrhagic simple cyst