Presentation
Reduced hearing in the right ear.
Patient Data
Age: 20 years
Gender: Male
From the case:
External auditory canal osteoma
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Info
Right solitary focal pedunculated bony overgrowths of the osseous external auditory canal at the bony cartilaginous junction. Associated with deep external auditory canal debris.
Normal middle and inner ear on both sides.
Case Discussion
External auditory canal (EAC) osteomas are rare focal pedunculated bony overgrowths of the osseous external auditory canal.
EAC osteoma is usually unilateral, solitary pedunculated bony overgrowth mainly at the bony cartilaginous junction. If large it may cause earwax, debris or secondary cholesteatoma
EAC osteomas should be differentiated from external auditory canal exostoses (surfer's ear), which are usually bilateral multiple broad based bony overgrowths.
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