This patient has had the tumor resection in another service, with the confirmation of a xanthomatous meningioma. Histopathologically, this tumor differs from conventional meningiomas by the presence of xanthomatous tumor cells. This meningioma subtype appears to share similar clinical presentation and treatment and prognosis as other meningiomas. 

The enhancement, in this case, is less vivid than usually seen on meningiomas.  

Intraventricular meningiomas are rare and represent an uncommon subtype of the more classical extra-axial meningioma and represent between 0.5 and 2% of all meningiomas. 80% of them, as in this case, is located in the trigone of the lateral ventricle.