The renal reality of adult Henoch-Schönlein purpura

Henoch-Schönlein purpura (HSP) is the most common vasculitis in children. The annual incidence of HSP in children is estimated as 15/100,000 cases; adult HSP is considered rare, with an estimated annual incidence of 1.3/100,000 cases. Clinical characteristics of HSP include abdominal pain, gastrointestinal bleeding, nonthrombocytopenic palpable purpura, arthritis, and renal involvement. 1 Yi F. Bai Z. Li Y. Xu X. Guo X. Qi X. A good response to...