External auditory canal osteoma

Case contributed by Dr MohammadTaghi Niknejad

Presentation

Left external auditory canal mass on physical examination

Patient Data

Age: 20 years old
Gender: Male
Modality: CT

Pedunculated bony mass arising from the anterior wall of the left external auditory canal and almost obliterating the canal.

Case Discussion

The findings are consistent with left external auditory canal osteoma.

Osteomas of the external auditory canal are considered clinically to be discrete, pedunculated bone lesions arising along the tympano-squamous suture while exostoses of external auditory canal are broad based elevations of bone usually multiple and bilaterally symmetric, involving the tympanic bone.

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Case Information

rID: 21146
Case created: 6th Jan 2013
Last edited: 3rd Nov 2016
System: Head & Neck
Tags: ear, osteoma
Inclusion in quiz mode: Included

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