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  1. IgA Vasculitis - NIDDK

    IgA vasculitis, formerly called Henoch-Schönlein purpura or HSP, is a disease that causes the antibody immunoglobulin A to collect in small blood vessels, which then become inflamed and leak blood. …

  2. IgA vasculitis (Henoch-Schönlein purpura): Clinical ... - UpToDate

    Oct 28, 2024 · Immunoglobulin A vasculitis (IgAV; formerly called Henoch-Schönlein purpura [HSP]) [1,2], is the most common form of systemic vasculitis in children, with an incidence range of 3 to 27 …

  3. Henoch-Schonlein purpura - Symptoms & causes - Mayo Clinic

    Sep 19, 2025 · Henoch-Schonlein purpura causes the small blood vessels in the skin, joints, intestines and kidneys to become inflamed and bleed. This condition also is called IgA vasculitis. The most …

  4. IgA Vasculitis - Vasculitis Foundation

    Feb 5, 2024 · In IgA vasculitis, the immunoglobulin A antibody—a type of antibody that works to fight infections—is thought to play a role in blood vessel inflammation. Studies show that 75 percent of …

  5. Immunoglobulin A–Associated Vasculitis (IgAV) - The Merck Manuals

    Immunoglobulin A–associated vasculitis (IgAV; formerly called Henoch-Schönlein purpura) is vasculitis that affects primarily small vessels. It occurs most often in children. Common manifestations include …

  6. Henoch-Schönlein Purpura (IgA Vasculitis): Rapid Evidence Review

    Aug 15, 2020 · IgA vasculitis is a small-vessel vasculitis caused by IgA immune deposits in the gastrointestinal system, joints, skin, and kidneys.

  7. IgA vasculitis - Henoch-Schonlein purpura - MedlinePlus

    Apr 30, 2023 · IgA vasculitis is a disease that involves purple spots on the skin, joint pain, gastrointestinal problems, and glomerulonephritis (a type of kidney disorder). It is also known as …

  8. IgA Vasculitis (Henoch-Schönlein Purpura) - StatPearls - NCBI Bookshelf

    Sep 26, 2023 · IgA vasculitis, formerly known as Henoch-Schönlein purpura, is a complex immune-mediated vasculitis characterized by the involvement of small blood vessels in various organ systems.

  9. IgA Vasculitis (Henoch-Schönlein Purpura) - Vasculitis UK

    What is IgA vasculitis? IgA vasculitis, previously known as Henoch-Schönlein Purpura (HSP), is a systemic vasculitis which can affect the skin, joints, bowel and kidneys. IgA is a form of antibody that …

  10. IgA vasculitis (Henoch-Schönlein purpura): Management

    Jun 12, 2025 · Immunoglobulin A vasculitis (IgAV), formerly called Henoch-Schönlein purpura (HSP) [1], is the most common systemic vasculitis of childhood. Ninety percent of cases occur in the pediatric …