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External auditory canal osteoma

Case contributed by Morouj Shaggah
Diagnosis almost certain

Presentation

Palpable hard left ear mass .

Patient Data

Age: 70 years
Gender: Female

A small well-defined lesion of bone density is seen at the junction between the cartilaginous and bony parts of the left external auditory canal, obliterating the canal with proximal soft tissue filling the canal.

Case Discussion

Uniliteral solitary pedunculated bony overgrowth of the external auditory canal usually at the bony cartilaginous junction, is highly suggestive of EAC osteoma.

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