Pneumatised petrous temporal bone apex

Case contributed by Dr Matthew Lukies


Headache. CT to exclude contraindications to lumbar puncture.

Patient Data

Age: 45
Gender: Male

Images uploaded to demonstrate pneumatised petrous temporal bone apices as an anatomical variant.

Case Discussion

Pneumatisation of the petrous temporal bone apices is an anatomical variant that may be symmetrical bilaterally or asymmetrical. It is important to recognise asymmetrical pneumatisation as normal anatomical variation and not confuse it with a tumour or pathological lesion.1,2 Benign lesions such as cholesterol granuloma and cholesteatoma are more likely to occur in a pneumatised petrous apex.1,2

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Case information

rID: 47508
Published: 19th Aug 2016
Last edited: 19th Aug 2016
Inclusion in quiz mode: Included

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