title: Steeple sign and narrowed upper airway in an influenza patient.
authors.affiliation: Department of Nephrology, Immunology, and Vascular Medicine, Shonan Kamakura General Hospital, 1370-1 Okamoto, Kamakura, Kanagawa, 247-8533, Japan. komaru-tky@umin.ac.jp.
authors.forename: Yohei
authors.initials: Y
authors.lastname: Komaru
authors.affiliation: Department of Emergency Medicine, JR General Hospital, 2-1-3 Yoyogi, Shibuya-Ku, Tokyo, 151-8528, Japan.
authors.forename: Ryota
authors.initials: R
authors.lastname: Inokuchi
mesh_terms: D003440:Croup / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D007251:Influenza, Human / Q000150:complications / Q000000981:diagnostic imaging*; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D014056:Tomography, X-Ray; D014132:Trachea / Q000000981:diagnostic imaging / Q000473:pathology; D014827:Vocal Cords / Q000000981:diagnostic imaging* / Q000473:pathology