High-Resolution Ultrasonography of Renal Oncocytoma Presenting with Symptomatic Hematuria and Urinary Bladder Clot Retention-A Rare Occurrence

J Kidney Cancer VHL. 2022 Jan 1;9(1):15-18. doi: 10.15586/jkcvhl.v9i1.200. eCollection 2022.

Abstract

Renal oncocytomas are asymptomatic, benign tumors often encountered incidentally on various imaging modalities. Renal oncocytomas comprise 5-7% of primary renal neoplasms and are derived from cells of the distal renal tubule. We present a case report of renal oncocytoma in a 22-year-old male having right-sided flank pain and symptomatic gross hematuria with a giant urinary bladder clot retention. The tumor was excised, and the patient underwent laparoscopic partial nephrectomy. Typical features of renal oncocytoma were observed upon histopathological examination of the resected specimen. The patient was catheterized, and bladder irrigation with clot retraction was performed.

Keywords: high-resolution ultrasonography; renal oncocytoma; symptomatic hematuria; urinary bladder clot retention.

Publication types

  • Case Reports