title: "Whorl sign" or "whirl sign"?
authors.forename: Wai T
authors.initials: WT
authors.lastname: Ng
authors.forename: Chuen W
authors.initials: CW
authors.lastname: Wong
authors.forename: Chi H
authors.initials: CH
authors.lastname: Cheung
mesh_terms: D003287:Contrast Media; D005260:Female; D006801:Humans; D007415:Intestinal Obstruction / Q000000981:diagnostic imaging*; D007421:Intestine, Small / Q000000981:diagnostic imaging*; D009626:Terminology as Topic; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media