title: Multiple rectal carcinoid tumors in monozygotic twins.
abstract: We report multiple rectal carcinoid tumors in monozygotic twins who, respectively, had 42 and 36 carcinoid tumors in the lower rectum. This is the first report about carcinoid tumors in monozygotic twins. Both twins developed a similar number of rectal carcinoids with a similar distribution. Investigation of their genetic background may provide information about the origin of these tumors.
authors.affiliation: Department of Surgery, Yawata Chuo Hospital, Yawata, Japan. oriono5chome@yahoo.co.jp.|Department of Surgery, Kyoto Second Red Cross Hospital, Kyoto, Japan. oriono5chome@yahoo.co.jp.
authors.forename: Momoko
authors.initials: M
authors.lastname: Doi
authors.affiliation: Department of Surgery, Kyoto Second Red Cross Hospital, Kyoto, Japan.
authors.forename: Osamu
authors.initials: O
authors.lastname: Ikawa
authors.affiliation: Department of Surgery, Kyoto Second Red Cross Hospital, Kyoto, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Taniguchi
authors.affiliation: Department of Gastroenterology, Kyoto Second Red Cross Hospital, Kyoto, Japan.
authors.forename: Takuji
authors.initials: T
authors.lastname: Kawamura
authors.affiliation: Department of Histopathology and Cytology, Kyoto Second Red Cross Hospital, Kyoto, Japan.
authors.forename: Kanade
authors.initials: K
authors.lastname: Katsura
mesh_terms: D002276:Carcinoid Tumor / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003113:Colonoscopy; D004200:Diseases in Twins / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D019160:Endosonography; D006801:Humans; D007414:Intestinal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D014430:Twins, Monozygotic
keywords: Familial carcinoid tumor; Multiple rectal carcinoid tumor; Neuroendocrine tumor; Twins