Meningioma - intracanalicular

Case contributed by A.Prof Frank Gaillard

Presentation

Hearing loss left side.

Patient Data

Age: 50 years
MRI

The left internal acoustic meatus is filled with an enhancing mass without extension into the labyrinth or cerebellopontine angle. The meatus is not widened. There appears to be minor dural thickening over the petrous bone and a thin dural tail. 

CT

CT demonstrates no widening of the internal acoustic meatus nor any evidence of hyperostosis. 

Case Discussion

The patient went on to have a resection. 

Histology

Sections show a lesion composed of cells with a streaming and whorled architecture. The cells have pale eosinophilic cytoplasm and ovoid nuclei with finely dispersed chromatin and visible nuclei. There are scattered psammoma bodies. There is no necrosis and mitoses are not seen.

FINAL DIAGNOSIS: Meningioma (WHO Grade I)

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Case information

rID: 63303
Published: 27th Sep 2018
Last edited: 27th Sep 2018
Inclusion in quiz mode: Included

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