Diagnostic significance of air in the head and neck.
D000293:Adolescent; D000328:Adult; D000388:Air; D002675:Child, Preschool; D003141:Communicable Diseases / Q000175:diagnosis; D006259:Craniocerebral Trauma / Q000150:complications / Q000175:diagnosis; D005151:Facial Injuries / Q000000981:diagnostic imaging; D005260:Female; D050723:Fractures, Bone / Q000000981:diagnostic imaging; D006257:Head; D006258:Head and Neck Neoplasms / Q000175:diagnosis; D006801:Humans; D008297:Male; D008659:Metabolic Diseases / Q000175:diagnosis; D009333:Neck / Q000000981:diagnostic imaging; D019838:Neck Injuries; D009369:Neoplasms / Q000175:diagnosis; D009915:Orbit / Q000000981:diagnostic imaging; D010808:Physical Examination; D011007:Pneumocephalus / Q000145:classification / Q000209:etiology; D011859:Radiography