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Shortly after being elbowed in the flank during a basketball game, a 35-year-old healthy man has severe, colicky abdominal pain followed by gross hematuria. A renal ultrasound scan reveals bilateral polycystic kidneys and liver cysts. The blood pressure is 160/100 mm Hg. The serum creatinine concentration is 0.9 mg per deciliter (80 μmol per liter). The pain subsides in 2 days with analgesics, rest, and fluids; the gross hematuria resolves in 4 days, although microscopic hematuria persists.
Jared J. Grantham (Wed,) studied this question.