A Case of Idiopathic Appendiceal Intussusception

Abstract

A 57-year-old woman was admitted to our hospital because of a palpable mass in the right lowerquadurant of the abdomen. Abdominal ultrasonography (US) and computed tomography (CT) showed atarget-like appearance on right lower abdomen. Barium enema showed a crab-finger finding the cecum with nonfilling of the appendix. Endocopic examination of her colon showed polypoid mass, foreskin and glans-like in the cecum. After cannulation dimple and injection of contrast medium, the lumen was appeared. A diagnosis of primary appendiceal intussusception was determined. However appendiceal intussusception was not inproved by laparotomy, so ilececal resection was carried out. Sugical specimen shoewd the appendix invagnated into the cecal lumen, mesuring 5×2cm in size.