A Case of Primary Appendiceal Intussusception

Koushi Kanno¹⁾³⁾, Sadaki Inokuchi²⁾³⁾, Hiroyasu Makuuchi¹⁾, Tomoo Tajima¹⁾, Toshio Mitomi¹⁾

Department of Surgery¹⁾, Emergency and Critical Medicine²⁾, Tokai University School of Medicine, Department of Surgery, Jukokai Hospital³⁾

A case of primary appendiceal intussusception, complete type, is reported. A 22-year-old man was admitted to our hospital because of recurrent right lower abdominal pain. He also complained of occasional diarrhea containing old blood. Barium enema and endoscopic examination of his colon showed polypoid mass of the cecum. The gross appearance and histology of the biopsy specimen from the mass were resembled to hyperplastic polyp of the colon. After laparotomy, the mass was diagnosed as completely intussuscepted appendix vermiformis, and was treated by ileocecal resection. Retrospectively, preoperative ultrasound images of the mass showed the typical appearance of appendiceal intussusception. Although primary appendiceal intussusception is a rare condition, we consider that is can be diagnosed by careful abdominal ultrasound imaging.

Key words
primary appendiceal intussusception, intussusception of the appendix, invagination of the appendix

Reprint requests
Koushi Kanno Department of Emergency and Critical Medicine, Tokai University School of Medicine
Bouseidai, Isehara-city, 259-11 JAPAN

Accepted
January 12, 1994

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