title: Inverted V sign.
authors.affiliation: University of Kentucky College of Medicine, Lexington, KY, 40536, USA. Emma222@uky.edu.|, 178 Sioux Rd, Lexington, KY, 40503, USA. Emma222@uky.edu.
authors.forename: Eleni M
authors.initials: EM
authors.lastname: Maroudas
authors.affiliation: Department of Radiology, University of Kentucky Medical Center, Lexington, KY, 40536, USA.|, 800 Rose Street, Room HX-315, Lexington, KY, 40536, USA.
authors.forename: Andres R
authors.initials: AR
authors.lastname: Ayoob
authors.affiliation: Department of Radiology, University of Kentucky Medical Center, Lexington, KY, 40536, USA.|, 800 Rose Street, Room HX-315, Lexington, KY, 40536, USA.
authors.forename: David J
authors.initials: DJ
authors.lastname: DiSantis
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging*; D011860:Radiography, Abdominal