Meningioma extending into internal acoustic canal

Case contributed by Frank Gaillard
Diagnosis certain

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.

Left cerebellopontine angle mass, isointense T1 and slightly high FLAIR signal. Demonstrates homogeneous enhancement. The mass has an internal acoustic canal component. 

Case Discussion

Microscopic Description:

Sections show the specimen to consist of small pieces of meningioma, portions of dura, and fibrous type tissue containing numerous blood vessels. Histologic features associated with aggressive biologic behavior are not seen.

Final diagnosis: Cerebellopontine angle, left: Meningioma.

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