The bony bridge in otoroentgen diagnosis.
D000293:Adolescent; D000328:Adult; D002781:Cholesteatoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D002908:Chronic Disease; D004427:Ear Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D004432:Ear, Middle / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008416:Mastoid / Q000000981:diagnostic imaging*; D008875:Middle Aged; D011859:Radiography; D013701:Temporal Bone / Q000000981:diagnostic imaging*