title: Pneumomediastinum as an early radiographic sign in membranous croup.
authors.affiliation: Department of Pediatric Imaging, University of Alabama at Birmingham, USA.
authors.forename: G L
authors.initials: GL
authors.lastname: Hedlund
authors.forename: B J
authors.initials: BJ
authors.lastname: Wiatrak
authors.forename: T
authors.initials: T
authors.lastname: Pranikoff
mesh_terms: D002675:Child, Preschool; D003440:Croup / Q000150:complications / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008478:Mediastinal Emphysema / Q000000981:diagnostic imaging* / Q000209:etiology; D011859:Radiography; D013997:Time Factors