2003 Volume 23 Issue 5 Pages 773-777
A 51-year-old male man who consulted a physician in a nearby clinic for right lower abdominal pain was confirmed by abdominal ultrasound examination to have an elastic hard mass in the lower right abdomen. Ileocecal intussusception due to neoplastic disease. The tumor in the lower right abdomen had disappeared when he came to our hospital. Barium enema showed a tumor with a coiled-spring sign in appendiceal intussusception. Colonoscopy showed a hemispherical tumor projecting into the cecum, suggesting appendiceal intussusception or vermiform appendix. We conducted ileocecal resection. The resected specimen was diagnosed as type B appendiceal intussusception in which the orifice of the vermiform appendix was open and part of the base of the vermiform appendix reversed, forming a hemispherical tumor. The cause of appendiceal intussusception remains unknown. Although appendiceal intussusception is rare disease, it should be considered as a possible cause of ileocecal intussusception.
