Petroclival meningioma

Case contributed by Dr Bruno Di Muzio


Chronic headache.

Patient Data

Age: 45-year-old
Gender: Female

MRI Brain

Vividly enhancing T2 isointense mass centered at the left petrous apex/cerebellopontine angle shows bony erosion at the base of the posterior clinoid processes and subtle erosive change also extending to the petrous apex. Mild cortical hyperostosis of the left petrous temporal bone.The porous acousticus is not widened.The left mastoid air cells and tympanic cavity are clear.Partial opacification of the left sphenoid sinus.

Case Discussion

MICROSCOPIC DESCRIPTION: Sections show diathermied fragments of a moderately cellular fibroblastic and meningothelial meningioma composed of spindle cells with focal whorling set within a densely fibrous stroma containing hyalinised blood vessels. Dural attachment is noted. No brain tissue is seen. No necrosis or mitoses are seen. No atypical or malignant features are identified.

DIAGNOSIS: Brain tumor: Meningioma, WHO grade I.

This case illustrates typical features of a petroclival meningioma, in which a solid soft tissue mass is seen involving both sides of the left petrous apex, showing vivid and intense contrast enhancement, hyperostosis and spoke wheel appearance of the intratumoral vessels. 

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Case information

rID: 42785
Published: 14th Feb 2016
Last edited: 14th Aug 2019
Tag: rmh
Inclusion in quiz mode: Included

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