Intussusception is the telescoping of one segment of intestine into another adjacent distal ("downstream") segment of the intestine. (The term "intussusception" is pronounced "in-tuh-suh-sep-tion" with the accent on the "in." It comes from the Latin "intus" = within + "suscipere" = to receive within).
Intussusception is the most common cause of intestinal obstruction in children between 3 months and 6 years of age. It is extremely rare in children under 3 months of age or in older children and adults.
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