A previously healthy 8-year-old boy is brought to the physician for a rash over his legs for 7 days. He is afebrile. Physical examination shows an excoriated, yellow, crusted rash on the lower extremities. Urine dipstick shows 2+ protein, 50 RBC/hpf, and 10 WBC/hpf. Which of the following is the most likely diagnosis?
Acute glomerulonephritis
Focal segmental glomerulosclerosis
Henoch-Schönlein purpura
IgA nephropathy
Interstitial nephropathy
Minimal change disease
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Cut-to-the-chase Answer (0:28):
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HY USMLE Answer (6:16):