intussusception
Pronunciation: /ˌɪntəsəˈsɛpʃən/
A condition where one portion of the intestine telescopes into an adjacent segment, causing bowel obstruction.
Full Definition
Intussusception is a form of bowel obstruction that occurs when one segment of intestine invaginates or telescopes into an adjacent distal segment. In pediatric patients, it most commonly affects infants between 6 months and 2 years of age, with ileocolic intussusception being the most frequent type. The classic triad of symptoms includes abdominal pain, vomiting, and bloody stools, though this complete presentation occurs in only a minority of cases. The condition may be idiopathic or secondary to a lead point such as Meckel's diverticulum, polyps, or lymphoma. Early recognition is crucial as delayed treatment can lead to bowel ischemia, perforation, and significant morbidity.
Usage
Usage note: Distinguish from 'intussusceptum' (inner segment) and 'intussuscipiens' (outer receiving segment) in detailed descriptions.
In Context
- "Ultrasound demonstrated the characteristic target sign consistent with intussusception in the right lower quadrant." — Emergency department radiology report
- "Air enema reduction was successful in treating the ileocolic intussusception without evidence of recurrence." — Pediatric radiology procedure note