title: Peutz-Jeghers syndrome manifesting complete intussusception of the appendix and associated with a focal cancer of the duodenum and a cystadenocarcinoma of the pancreas: report of a case.
abstract: The unusual occurrence of an "inside-out" appendix reported here is a case of complete intussusception of the appendix of a 45-year-old woman with Peutz-Jeghers syndrome in whom the diagnosis of intussusception was made preoperatively. At laparotomy, the lead point of intussusceptum was revealed to be a Peutz-Jeghers syndrome polyp of the appendix. There was also a cystic lesion in the pancreas, and subsequent distal pancreatectomy revealed a cystadenocarcinoma of the pancreas. Two jejunal Peutz-Jeghers syndrome polyps and two duodenal Peutz-Jeghers syndrome polyps were found via intraoperative endoscopies. The duodenal polyps were endoscopically removed, whereas a jejunal wedge resection was performed for the adjoining jejunal polyps. One of the two duodenal polyps possessed an adenocarcinoma focus. To our knowledge, this is the first report of complete intussusception of the appendix caused by a Peutz-Jeghers syndrome polyp.
authors.affiliation: Third Department of Surgery, University of Tokyo, Bunkyoku, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Yoshikawa
authors.forename: S
authors.initials: S
authors.lastname: Kuramoto
authors.forename: T
authors.initials: T
authors.lastname: Mimura
authors.forename: K
authors.initials: K
authors.lastname: Kobayashi
authors.forename: S
authors.initials: S
authors.lastname: Shimoyama
authors.forename: H
authors.initials: H
authors.lastname: Yasuda
authors.forename: M
authors.initials: M
authors.lastname: Kaminishi
authors.forename: M
authors.initials: M
authors.lastname: Yamakawa
authors.forename: T
authors.initials: T
authors.lastname: Oohara
authors.forename: T
authors.initials: T
authors.lastname: Murakami
mesh_terms: D001063:Appendiceal Neoplasms / Q000209:etiology* / Q000601:surgery; D003536:Cystadenocarcinoma / Q000601:surgery; D004379:Duodenal Neoplasms / Q000601:surgery; D005260:Female; D006801:Humans; D007443:Intussusception / Q000209:etiology* / Q000601:surgery; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000601:surgery; D010190:Pancreatic Neoplasms / Q000601:surgery; D010580:Peutz-Jeghers Syndrome / Q000150:complications* / Q000601:surgery