Pneumatised petrous temporal bone

Case contributed by Dr Mostafa Mahmoud El Feky



Patient Data

Age: 25
Gender: Male

CT skull base

Symmetrical bilateral pneumatised petrous temporal bone apices.

Case Discussion

Pneumatisation of the petrous temporal bone apices is an anatomical variant that may be bilateral or asymmetrical. It is important not to confuse it with a pathological lesion especially in MRI.

Benign lesions such as cholesterol granuloma and cholesteatoma are more likely to occur in a pneumatised petrous apex. Also it can be a site for CSF fistula especially after skull base surgery (e.g. vestibular schwannoma surgery).

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Case information

rID: 54011
Case created: 19th Jun 2017
Last edited: 4th Jul 2017
System: Head & Neck
Inclusion in quiz mode: Included

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