Presentation
Headache
Patient Data
Age: 20 years
Gender: Male
From the case:
Asymmetric fatty bone marrow of the petrous apex
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MRI study shows an asymmetrical signal of both petrous apices, the right side has signal void (pneumatized with gas) and the left side elicits high signal on T1, intermediate to high signal on T2 and high signal on FLAIR (fatty marrow signal)
From the case:
Asymmetric fatty bone marrow of the petrous apex
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CT study shows non-pneumatized left petrous apex with the presence of a fatty marrow
From the case:
Asymmetric fatty bone marrow of the petrous apex
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Annotated images highlight the findings
Case Discussion
Here is a case of asymmetric fatty bone marrow of the petrous apex, one of the "leave me alone lesions". It is an anatomical variation and should not be confused with other petrous apex lesions.
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