A member asked:

Mr resultsi: opacification of the left petrous apex is present without associated restricted diffusion or enhancement. possible cause?

2 doctors weighed in across 2 answers
Dr. Alan Ali answered

Specializes in Psychiatry

Petrous Apex: Most common possible cause is chronic otitis media (middle ear infections), as i recall from my medical school days. Please review with the radiologist & an ENT specialist.

Answered 6/10/2014

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Petrous apex: Could also be a cholesterol granuloma. These lesions, if asymptomatic, usually just need to be monitored with MRI to check for any changes in size.

Answered 11/25/2016

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