title: Tracheal obstruction.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000209:etiology; D001999:Bronchoscopy; D003528:Carcinoma, Adenoid Cystic / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000150:complications / Q000601:surgery; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007442:Intubation, Intratracheal / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D011312:Pressure; D011859:Radiography; D013537:Sutures; D014132:Trachea / Q000000981:diagnostic imaging; D014134:Tracheal Neoplasms / Q000150:complications / Q000601:surgery; D014135:Tracheal Stenosis / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D014140:Tracheotomy