HSP-Associated Intussusception — RACP Paediatrics MCQ

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HardGastroenterologyHSP-Associated IntussusceptionRACP Paediatrics

A 9-year-old presents with a 2-day history of abdominal pain, vomiting, and a target-like intussusception on ultrasound. He also has a purpuric rash on his legs. What condition is causing the intussusception?

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Correct answer: D — HSP (IgA vasculitis)

HSP can cause intussusception (typically ileo-ileal rather than the more common ileocolic). The haemorrhagic submucosal oedema from IgA vasculitis acts as a lead point. Ileo-ileal intussusception from HSP may not reduce with air enema and may require surgical intervention.

Reference: RCH Melbourne – 2024 – Clinical Practice Guidelines: HSP Complications