title: Bird's beak sign.
authors.affiliation: University of Kentucky College of Medicine, 138 Leader Ave, Lexington, KY, 40506, USA. akchak2@uky.edu.
authors.forename: Amit
authors.initials: A
authors.lastname: Chakraborty
authors.affiliation: Department of Radiology, University of Kentucky College of Medicine, 800 Rose St, Lexington, KY, 40536, USA.
authors.forename: Andres
authors.initials: A
authors.lastname: Ayoob
authors.affiliation: Department of Radiology, University of Kentucky College of Medicine, 800 Rose St, Lexington, KY, 40536, USA.
authors.forename: David
authors.initials: D
authors.lastname: DiSantis
mesh_terms: D012809:Colon, Sigmoid / Q000000981:diagnostic imaging*; D003287:Contrast Media; D005471:Fluoroscopy; D006801:Humans; D045822:Intestinal Volvulus / Q000000981:diagnostic imaging*; D011856:Radiographic Image Enhancement; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media