Surgery · UKMLA & AKT
Intussusception
A free high-yield preview for the UKMLA Applied Knowledge Test. Below are the key points to recognise intussusception — the full SA Note notes add investigations, management, complications and 10 practice questions.
Key high-yield points
- Proximal bowel (intussusceptum) telescopes into distal bowel (intussuscipiens) causing obstruction and vascular compromise
- Most common in infants aged 3 months - 2 years; peak 5-9 months; 2x more common in boys
- Majority idiopathic (hypertrophy of Peyer's patches post-viral); beyond age 2, pathological lead point more likely
- Most common site: ileocolic (ileocaecal junction)
- Pathological lead points: Meckel's diverticulum (most important), polyps, lymphoma, HSP submucosal haematoma
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