A Case of Hematuria and Flank Pain

A 20-year-old white man presented to the emergency room with severe, left-sided, upper abdominal pain that began upon awakening two days previously.

The pain was described as aching, intermittently worse with movement, radiating to left flank, and associated with nausea. There were no obvious triggers or recent trauma. He denied any past medical history. There was no recent illness or travel.

He ...