Henoch-Schönlein purpura (IgA Vasculitis)
I. What every physician needs to know. Background Henoch Schönlein Purpura (HSP) is the most common small vessel vasculitis seen in children. Though it affects children predominately, 10-28% of patients with HSP are adults. The disease has also been called Schönlein-Henoch purpura, anaphylactoid purpura and purpura rheumatica. The 2012 International Chapel Hill Consensus Conference on…