title: Radiology of sigmoid volvulus.
abstract: Sigmoid volvulus is often a surgical emergency. The diagnosis is usually reached on the basis of both clinical and radiologic assessment. A review of the radiologic findings in 20 patients diagnosed as having sigmoid volvulus is presented. Typical radiographic features are illustrated. Reasons for their absence in certain cases are discussed. [Key words: Volvulus, sigmoid; Diagnostic problems; Sigmoid, volvulus].
mesh_terms: D001466:Barium Sulfate; D003937:Diagnosis, Differential; D004733:Enema; D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging*; D011859:Radiography; D012810:Sigmoid Diseases / Q000000981:diagnostic imaging*
chemical_list: D001466:Barium Sulfate