intussusception
Pronunciation: in-tus-sus-SEP-shun
Telescoping of one segment of bowel into an adjacent segment, causing obstruction and potential ischemia.
Full Definition
A condition where a proximal segment of intestine invaginates into the lumen of an adjacent distal segment, creating a telescoping effect that can lead to bowel obstruction and compromised blood supply. Most common in infants and young children, typically involving the ileocolic region. Clinical presentation includes crampy abdominal pain, vomiting, and the classic 'currant jelly' stool. Initial treatment may involve pneumatic or hydrostatic reduction under imaging guidance, but surgical intervention is required if reduction fails or if signs of perforation or peritonitis are present.
Usage
Usage note: Specify the anatomical location (e.g., ileocolic, ileoileal) when documenting.
In Context
- "The ultrasound revealed a classic 'doughnut sign' consistent with ileocolic intussusception." — radiology report
- "Failed pneumatic reduction of the intussusception necessitated surgical exploration and manual reduction." — operative note