title: Clinical pearls. Difficulty breathing.
authors.affiliation: University of Southern California School of Medicine, Los Angeles County, USA.
authors.forename: W K
authors.initials: WK
authors.lastname: Mallon
authors.forename: M H
authors.initials: MH
authors.lastname: Moustafa
mesh_terms: D000328:Adult; D000402:Airway Obstruction / Q000000981:diagnostic imaging / Q000209:etiology*; D003937:Diagnosis, Differential; D006689:Hodgkin Disease / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging*; D011859:Radiography; D013479:Superior Vena Cava Syndrome / Q000000981:diagnostic imaging / Q000209:etiology