A 35-year-old white man with no prior illness presented with a 10-day history of colicky abdominal pain worsened with meals, and back pain. This was followed in 3 days by an asymptomatic purpuric ...
Immunoglobin A (IgA) vasculitis (IgAV), formerly called the Henoch-Schönlein purpura (HSP), is a small vessel vasculitis, characterized by IgA1-dominant immune deposition at diseased vessel walls.
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