Delayed Post-Traumatic Ureteropelvic Junction Obstruction on a Pelvic Ectopic Kidney in a 2-Year-Old Boy: Case Report

Abstract

This case report highlights the risk of renal injury in the presence of a pelvic kidney following blunt abdominal trauma. The case involved a 2-year-old boy who suffered from pelvic tenderness and total macroscopic hematuria after an abdominal blunt trauma. CT scan revealed a left pelvic kidney with a double pyelic system and pyelocal dilatation, coupled with an inferior polar parenchymatous fracture that extended to the excretory tract. The patient initially received conservative treatment, but later developed ureteropelvic junction obstruction, resulting in surgical intervention with a dismembered pyeloplasty. This case highlights the importance of early diagnosis and follow- up imaging for patients with UPJ lesions and the need for conservative treatment options, such as ureteral stenting or percutaneous nephrostomy, to alleviate obstruction and facilitate the healing process. In all cases of conservatively treated renal trauma, rigorous clinical and radiological monitoring is essential.