What does "large intestine wrapping around the small intestine" mean?

Intussusception, commonly referred to as "large intestine wrapping around the small intestine," refers to a condition in which a segment of the intestine telescopes into an adjacent segment, causing an obstruction to the passage of intestinal contents. This condition most commonly occurs in children under the age of two and is relatively rare in adults. The exact cause of intussusception remains unclear, but it may be related to infections, abnormal intestinal development, dietary factors, or environmental factors. Its classic symptoms include paroxysmal abdominal pain, currant-jelly stool (blood mixed with mucus), and an abdominal mass. It may also be accompanied by symptoms such as nausea, vomiting, and abdominal distension. Intussusception is a medical emergency. If not treated promptly, it can lead to worsening intestinal obstruction and even severe complications such as intestinal necrosis, which often require surgical intervention. Therefore, immediate medical attention should be sought once symptoms suggestive of intussusception occur. Additionally, the term "large intestine wrapping around the small intestine" may also be used to describe other intestinal diseases, such as Hirschsprung's disease (congenital megacolon), chronic colitis, tuberculous peritonitis, and colon cancer. These conditions can all lead to intestinal dysfunction and may present with radiological findings resembling intussusception. However, it should be noted that these diseases differ from intussusception in terms of etiology, symptoms, and treatment approaches, and diagnosis and management should be based on individual clinical presentations.