title: Handlebar hernia with intra-abdominal extraluminal air presenting as a novel form of traumatic abdominal wall hernia: report of a case.
abstract: An 18-year-old male was admitted to our Emergency Department with a traumatic abdominal wall hernia (TAWH) of the left lower quadrant (LLQ) after suffering hypogastric blunt injury and urogenital lacerations in a motorcycle accident. Upright chest X-ray showed a small amount of right infradiaphragmatic free air, and a computed tomographic (CT) scan demonstrated an abdominal wall hernia. At surgery, no impairment was found in the digestive tract, and an abdominal herniorrhaphy was performed. It is suggested that the free air had passed through a connection between the scrotal laceration and the contralateral abdominal defect via the subcutaneous space and was palpated as emphysema. This is a new type of TAWH, which suggests that blunt abdominal trauma may result in negative pressure in the subcutaneous and peritoneal cavity, and this could reflect the pathophysiology of TAWH.
authors.affiliation: First Department of Surgery, Shiga University of Medical Science, Otsu, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Shiomi
authors.forename: T
authors.initials: T
authors.lastname: Hase
authors.forename: S
authors.initials: S
authors.lastname: Matsuno
authors.forename: M
authors.initials: M
authors.lastname: Izumi
authors.forename: T
authors.initials: T
authors.lastname: Tatsuta
authors.forename: F
authors.initials: F
authors.lastname: Ito
authors.forename: A
authors.initials: A
authors.lastname: Kishida
authors.forename: T
authors.initials: T
authors.lastname: Tani
authors.forename: M
authors.initials: M
authors.lastname: Kodama
mesh_terms: D000009:Abdominal Muscles / Q000293:injuries* / Q000601:surgery; D000063:Accidents, Traffic; D000293:Adolescent; D005500:Follow-Up Studies; D006555:Hernia, Ventral / Q000000981:diagnostic imaging / Q000209:etiology* / Q000601:surgery; D006801:Humans; D008297:Male; D009049:Motorcycles; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy; D013514:Surgical Procedures, Operative / Q000379:methods; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D014949:Wounds, Nonpenetrating / Q000150:complications* / Q000000981:diagnostic imaging