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Updated: Feb 16, 2026

Robot-Assisted Kidney Transplantation
Published on: July 19, 2021
Extra-renal Transplanted Kidney Stone: Case Presentation and Literature Review
Abbas Basiri1, Mohammad Nadjafi Semnani2, Hamed Mohseni Rad2
1Urology and Nephrology Research Center, Shahid Labbafinejad Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran. Basiri@unrc.ir.
Abstract:
Soft tissue calcification is common in uremic patients. Wound calcification or ossification is not so prevalent except in specific conditions like inflammation and ischemia or wound tension. We present a 40-year-old transplanted patient, not only perirenal ossification but also with multiple perirenal stones. The presentation was severe pain on the site of transplantation. Pre-op CT scan revealed perirenal calcified mass. Intraoperative finding was verythick tissue accompanied with a lot of stones around the transplanted kidney. The patient had history of ureteral fistula after renal transplantation that needed temporary percutaneous nephrostomy and then uretero-neocystomy.It seems that urinary leakage through nephrostomy site probably is the predisposing factor for stone formation around the kidney where as there is no stone inside the Kidney.
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