Pathologic changes of the skin of the external auditory canal in chronic otitis media and mastoiditis.
D002908:Chronic Disease; D004424:Ear Canal; D004432:Ear, Middle / Q000473:pathology*; D006801:Humans; D008417:Mastoiditis / Q000473:pathology*; D010033:Otitis Media / Q000473:pathology*; D012867:Skin
EAR, MIDDLE/pathology; MASTOIDITIS/pathology; OTITIS MEDIA/pathology