ArticleBMJ case reports2026
Angioedema: a rare manifestation of Henoch-Schönlein purpura.
Article in BMJ case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
Henoch-Schönlein purpura (HSP) is a small vessel immunoglobulin A (IgA) vasculitis that primarily affects children. Characteristic manifestations include purpuric rash, abdominal pain, renal insult and arthralgia. Non-classical manifestations, such as angioedema, may mimic signs and symptoms associated with differential diagnoses including hereditary angioedema, anaphylaxis and urticarial vasculitis. We present the case of a girl in middle childhood who presented with angioedema with a known history of HSP. Familiarity with atypical manifestations of HSP may mitigate the need for invasive diagnostics such as renal or skin biopsy.
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