Medial canal fibrosis is characterised by fibrous tissue formation in the medial part of the bony external auditory canal.
Patients can present with conductive hearing loss, otorrhea and/or a history of chronic otitis.
- thickened tympanic membrane with edematous and mildly thickened medial medial external auditory canal mucosa
- crescentic area of soft tissue thickening overlying the lateral tympanic membrane surface and extending laterally into to fill the medial external auditory canal
- no bony erosive changes
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