Partial nephrectomy for a completely endophytic tumor in an allograft kidney, 14 years after transplantation

We report our experience with nephron-sparing surgery for a completely endophytic small renal mass in an allograft kidney. A 37-year-old female, 14 years post live-related renal transplant for end-stage renal disease due to crescentic glomerulonephritis, presented with a 3.6 cm renal mass. She underwent open allograft partial nephrectomy and was discharged on the 5^th postoperative day. Six months postsurgery, she showed excellent graft function with no tumor recurrence. Nephron-sparing surgery of the allograft kidney presents challenges regarding vascular anatomy, hilar, and parenchymal adhesions making the surgery difficult, but is feasible and oncologically safe for transplant recipients with tumors in the allograft kidney.