Hematuria and Abdominal Pain in a 50-Year-Old Man

A 50-year-old man undergoes CT examination for workup of hematuria and abdominal pain. Noncontrast and postcontrast images from the CT are shown. What is your diagnosis?

A 50-year-old man undergoes CT examination for workup of hematuria and abdominal pain. Noncontrast (Figure 1) and postcontrast (Figure 2) images from the CT are shown below.

What is your diagnosis?

A. Hemorrhagic renal cyst

B. Renal cell carcinoma

C. Pseudoaneurysm

D. Simple renal cyst

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