A Bosniak IV Cystic Renal Mass with Mixed Epithelial and Stromal Tumor Features

Abstract

A 60-year-old male with a past medical history of aortic valve replacement, well-managed hypertension, hyperlipidemia, and bilateral inguinal herniorrhaphy presented to the emergency room with worsening right lower abdominal pain and gross hematuria. He was subsequently admitted due to leukocytosis (24.35 k/uL), pyuria, and elevated serum creatinine (1.37 mg/dL). Contrast-enhanced CT abdomen/pelvis demonstrated an enlarged prostate with peri-prostatic inflammatory fat stranding suspicious for acute prostatitis.