title: Computed tomographic appearance of sigmoid volvulus.
abstract: The computed tomographic (CT) appearance of two cases of sigmoid colon volvulus is described. Both underwent plain abdominal radiographs, contrast enema, and CT. The findings of sigmoid volvulus at CT were characteristic, having a whirl pattern of the dilated sigmoid loop around mesocolon and vessels and a bird-beak aspect of the afferent and efferent segments. CT may be valuable in a case of unusual clinical or plain film presentation as an alternative to contrast enema.
authors.affiliation: Department of Radiology, University "Federico II," Via Pansini 5, I-80131 Naples, Italy.
authors.forename: O
authors.initials: O
authors.lastname: Catalano
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001466:Barium Sulfate; D003287:Contrast Media; D004733:Enema; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging*; D008646:Mesocolon / Q000000981:diagnostic imaging; D012002:Rectal Diseases / Q000000981:diagnostic imaging; D012008:Recurrence; D012810:Sigmoid Diseases / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014102:Torsion Abnormality / Q000000981:diagnostic imaging
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate