APPENDICEAL INTUSSUSCEPTION DUE TO AN APPENDICEAL MALIGNANT POLYP - AN ASSOCIATION IN A PATIENT WITH PEUTZ-JEGHERS SYNDROME - REPORT OF A CASE

A 40-year-old woman with Peutz-Jeghers syndrome and an appendiceal int ussusception is reported. In this patient, the lead point was a large sessile, appendiceal polyp. The invaginated and inverted portion of th e appendix resembled the long stalk of a pedunculated polyp on roentge nography and endoscopic examination. Histologically, the appendiceal p olyp was a villous adenoma with mild to severe atypia and focal carcin oma in situ, In patients with Peutz-Jeghers syndrome, hamartomatous po lyps and colorectal adenomatous polyps with highly malignant potential can coexist and must be managed appropriately. Therefore, when evalua ting a polypoid or a pedunculated lesion in the cecal lumen, the possi bility of an appendiceal intussusception should also be investigated.