title: Nominal free air in the left inguinal fossa due to perforation of the sigmoid colon in a case of blunt abdominal trauma: CT diagnosis.
abstract: We present a case of perforation of the sigmoid colon due to blunt abdominal trauma. Computed tomography showed nominal free air in the inguinal fossa. The distribution of free air may be a clue to the site of an injured intestine. Early detection of intestinal injury is difficult, but repeated computed tomography after several hours may reveal increased free air.
authors.affiliation: Department of Radiology, Sapporo Medical University, School of Medicine, S-1 W-16, Sapporo, 060-8543, Japan. nyama@sapmed.ac.jp
authors.forename: N
authors.initials: N
authors.lastname: Yama
authors.forename: Y
authors.initials: Y
authors.lastname: Kimura
authors.forename: H
authors.initials: H
authors.lastname: Tatsumi
authors.forename: C
authors.initials: C
authors.lastname: Kihara
authors.forename: Y
authors.initials: Y
authors.lastname: Kurimoto
authors.forename: E
authors.initials: E
authors.lastname: Narimatsu
authors.forename: H
authors.initials: H
authors.lastname: Ura
authors.forename: K
authors.initials: K
authors.lastname: Koito
authors.forename: Y
authors.initials: Y
authors.lastname: Asai
authors.forename: K
authors.initials: K
authors.lastname: Hirata
authors.forename: M
authors.initials: M
authors.lastname: Hreyama
mesh_terms: D000007:Abdominal Injuries / Q000150:complications*; D000058:Accidental Falls; D000368:Aged; D012809:Colon, Sigmoid / Q000000981:diagnostic imaging / Q000293:injuries* / Q000601:surgery; D004646:Emphysema / Q000000981:diagnostic imaging* / Q000209:etiology; D006801:Humans; D007264:Inguinal Canal / Q000000981:diagnostic imaging*; D007416:Intestinal Perforation / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D008297:Male; D014057:Tomography, X-Ray Computed; D014949:Wounds, Nonpenetrating / Q000150:complications*