intussusception
Pronunciation: /ɪnˌtʌsəˈsɛpʃən/
A pediatric emergency where one portion of intestine telescopes into another, diagnosed through ultrasound or contrast enema studies.
Full Definition
Intussusception is a medical emergency primarily affecting infants and young children, where one segment of intestine invaginates into an adjacent segment, causing bowel obstruction. The classic presentation includes intermittent abdominal pain, vomiting, and bloody stools, though not all patients present with the complete triad. Ultrasound shows the characteristic 'target sign' or 'donut sign' in cross-section. Contrast enema (air or liquid) serves both diagnostic and therapeutic purposes, with pneumatic reduction being the preferred treatment method. The success rate of radiological reduction is highest when performed within 24 hours of symptom onset.
Usage
Usage note: Note the double 's' in the spelling - commonly misspelled.
In Context
- "Ultrasound confirmed intussusception with the characteristic target sign appearance." — Emergency radiology report
- "Pneumatic reduction of the intussusception was successful without complications." — Fluoroscopy procedure note