title: "Venous cut-off sign" as an adjunct to the "whirl sign" in recognizing acute small bowel volvulus via CT scan.
abstract: BACKGROUND
  A young adult patient was admitted for signs and symptoms of acute abdomen.
  
  
  METHODS
  Urgent CT scan was performed and small bowel volvulus was confirmed. The "whirl sign" diagnostic of small bowel volvulus was present.
  
  
  RESULTS
  Furthermore, the accompanying superior mesenteric vein was noted to be truncated at the point of torsion.
  
  
  CONCLUSIONS
  The "venous cut-off sign" can be a useful adjunct sign to the diagnosis.
authors.affiliation: Department of Radiology, Queen Mary Hospital, 102, Pokfulam Road, Hong Kong, China. hoyc1@ha.org.hk
authors.forename: Yuen Chi
authors.initials: YC
authors.lastname: Ho
mesh_terms: D000006:Abdomen, Acute / Q000209:etiology; D000208:Acute Disease; D000293:Adolescent; D006801:Humans; D045822:Intestinal Volvulus / Q000150:complications / Q000000981:diagnostic imaging* / Q000473:pathology; D007421:Intestine, Small / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008642:Mesenteric Veins / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed