TY - CHAP M1 - Book, Section TI - Henoch-Schönlein Purpura A1 - Hellmann, David B. A1 - Imboden Jr., John B. A2 - Papadakis, Maxine A. A2 - McPhee, Stephen J. A2 - Rabow, Michael W. PY - 2020 T2 - Current Medical Diagnosis and Treatment 2020 AB - Henoch-Schönlein purpura, the most common systemic vasculitis in children, occurs in adults as well. Typical features are palpable purpura, arthritis, and hematuria. Abdominal pain occurs less frequently in adults than in children. Pathologic features include leukocytoclastic vasculitis with IgA deposition. The cause is not known. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2022/05/29 UR - accessmedicine.mhmedical.com/content.aspx?aid=1166169544 ER -