title: [Intramural duodenal hematoma: a case report].
abstract: A 55-year-old male patient with acute onset of abdominal pain was examined. He had no apparent history of abdominal trauma or bleeding tendency. MRI showed three layered architecture, so-called "ring sign" distinctive of hematoma. MRI seemed to be very useful in non-invasively diagnosing intramural duodenal hematoma.
authors.affiliation: Department of Radiology, Tokyo Metropolitan Hiroo Hospital.
authors.forename: T
authors.initials: T
authors.lastname: Takeda
authors.forename: T
authors.initials: T
authors.lastname: Nakayama
authors.forename: S
authors.initials: S
authors.lastname: Momoshima
authors.forename: T
authors.initials: T
authors.lastname: Tsutsui
authors.forename: T
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Y
authors.initials: Y
authors.lastname: Yuasa
authors.forename: M
authors.initials: M
authors.lastname: Hirano
mesh_terms: D004378:Duodenal Diseases / Q000175:diagnosis*; D006406:Hematoma / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged