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All Diseases > IgA Vasculitis
Alternative Names: Henoch-Schonlein purpura
Disease Category: Vasculitis Disorders
A rare, immune system disorder characterized by accumulation of immunoglobulin A (a specific antibody protein) in small blood vessels. This causes inflammation and leakage of blood, affecting the skin, joints, digestive tract, kidneys, and, rarely, the nervous system and lungs. The most common symptom is purpura (a red or purple skin rash). Severe cases may lead to acute kidney injuries that progress to chronic kidney disease.