Crossed Fused Ectopic Kidney with Stone Disease and Bifid Renal Pelvis: A Case Report

Abstract

Crossed fused ectopic kidney is a rare congenital anomaly wherein the kidneys are present on the same side due to fusion. It is a rare disease that may remain undiagnosed throughout life. Its rarity and anatomical abnormality make any intervention challenging. A 32-year-old male patient presented with symptoms of pain in the abdomen and burning micturition for a year. Serum creatinine, along with other blood tests, was normal. X-ray KUB showed renal calculi in the region of the right kidney. However, a Computed Tomography (CT) scan showed that the left kidney was malrotated and fused with the lower pole of the right kidney, suggestive of crossed fused renal ectopia. A cystoscopy and retrograde pyelography were performed, followed by open pyelolithotomy, wherein calculi were removed, and a stent was placed. Through this case report, it is suggested that adequate presurgery evaluation is necessary for patients with such malformations.