title: Successfully treated idiopathic rectosigmoid perforation 7 years after renal transplantation.
abstract: Colon perforation (CP) is still a critical complication after renal transplantation (RT), and idiopathic perforation is extremely rare. Here we describe a successfully treated case of idiopathic rectosigmoid perforation that occurred 7 years after RT. In our research this is the tenth reported case of idiopathic CP after RT and the second case that has occurred in the rectosigmoid. The patient was a 51-year-old Japanese male RT recipient still receiving immunosuppressive medication. He was admitted to the hospital for sudden onset of abdominal pain during defecation. Emergency laparotomy was performed 5 h after the onset, and a longitudinal 1.5 cm perforation with a clear margin was observed in the rectosigmoid, 8 cm above the peritoneal reflection. Hartmann's operation was performed. Macroscopic and histological examination did not reveal any specific findings that may have caused perforation, so the case was diagnosed as idiopathic rectosigmoid perforation.
authors.affiliation: Department of Surgical Oncology, Graduate School of Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Konishi
authors.forename: Toshiaki
authors.initials: T
authors.lastname: Watanabe
authors.forename: Joji
authors.initials: J
authors.lastname: Kitayama
authors.forename: Junji
authors.initials: J
authors.lastname: Shibahara
authors.forename: Takehiko
authors.initials: T
authors.lastname: Hiramatsu
authors.forename: Kosuke
authors.initials: K
authors.lastname: Hara
authors.forename: Ken
authors.initials: K
authors.lastname: Kuriki
authors.forename: Hirokazu
authors.initials: H
authors.lastname: Nagawa
mesh_terms: D006801:Humans; D007416:Intestinal Perforation / Q000209:etiology* / Q000473:pathology; D016030:Kidney Transplantation / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D012002:Rectal Diseases / Q000209:etiology* / Q000473:pathology; D012810:Sigmoid Diseases / Q000209:etiology* / Q000473:pathology; D013997:Time Factors