Mondo Description A systemic, usually self-limited immune complex vasculitis, characterized by immunoglobulin A deposition in the small vessels and kidneys. It is manifested with small hemorrhages in the skin, gastrointestinal symptoms, arthritis, and nephropathy.

Disease Ontology Description A hypersensitivity vasculitis that is characterized by purpura (purplish plaques), arthralgia, gastrointestinal upset, and/or glomerulonephritis, and may be related to increased immune response following an infection.