Henoch-Schönlein Purpura (HSP) is a systemic vasculitis mediated by IgA and It is the most frequent vasculitis in children and the incidence in adults varies.
Henoch-Schonlein purpura (HSP) is a disease involving inflammation of small blood vessels. Causes and Risk Factors for Henoch-Schonlein Purpura. The classic symptoms of HSP are rash, joint pain and swelling, abdominal pain, and/or related kidney disease, including blood in urine.
A year-old white man with no prior illness presented with a day history of colicky abdominal pain worsened with meals, and back pain.
Henoch-Schönlein Purpura nephritis (HSPN) has been extensively studied in children but, its natural history in adults is much less known.