Calculus in 16-Year-Old Cadaveric Kidney Transplant: A Unique Case and Literature Review

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Abstract
Calculi are rare in transplanted kidneys with an incidence of 0.1–0.2% of all urological complications. The clinical presentation of an obstructing stone is different from that seen in nontransplant patients and can be easily mistaken for rejection. Ultrasonography and renogram may fail to detect it. Steroid therapy, the treatment of choice for acute rejection, may improve renal functions albeit obstruction. An obstruction ureteral stone in a 16-year-old cadaveric kidney transplant was mistaken for acute rejection. Steroid therapy improved renal function for a short time, but then anuria recurred. Failing treatment, the kidney was considered lost and hemodialysis was started. Spontaneous passage of a stone and improved renal functions clarified the picture. The literature regarding kidney transplant stones is reviewed.

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