Radiation enteritis

Radiation enteritis is an intestinal complication caused by radiation therapy of pelvic, abdominal, and retroperitoneal malignant tumors. It can affect the small intestine, colon, and rectum, so it is also called radiation rectum, colon, and enteritis. In the early stage, intestinal mucosal cell regeneration is inhibited, and later the arteriolar wall swells and occludes, causing intestinal wall ischemia and mucosal erosion. The intestinal wall causes fibrosis in the advanced stage, the intestinal cavity is narrow or perforated, and abscesses, fistulas, and intestinal adhesions are formed in the abdominal cavity.

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