A Case of Transplant Kidney Infected Hydronephrosis Complicated by Pyonephrosis 15 Years Post-Transplantation: A Case Report and Literature Review.

We present the case of a 45-year-old male with a history of 2 renal transplants who developed right iliac fossa (RIF) pain, abscess formation, and hydronephrosis in a non-functioning transplanted kidney, a rare and serious complication. The patient underwent prompt surgical intervention, including drainage and subsequent nephrectomy of the non-functioning kidney. This case underscores the challenges of managing long-term post-transplant complications, such as infection, abscess formation, and hydronephrosis, which require timely diagnosis and multidisciplinary management.