====== Intraventricular meningioma outcome ======

[[Intraventricular meningioma]]s have a favorable [[prognosis]] because 90% of them are [[WHO]] grade I
((Pereira BJA, de Almeida AN, Paiva WS, de Aguiar PHP, Teixeira MJ, Marie SKN. Natural history of intraventricular meningiomas: systematic review. Neurosurg Rev. 2020 Apr;43(2):513-523. doi: 10.1007/s10143-018-1019-0. Epub 2018 Aug 15. PMID: 30112665.)).
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These tumors accounted for a mortality rate of 4.0% (25 deaths) and a recurrence rate of 5.3% (26 recurrences). 

Recurrence and mortality were lower than in other localizations likely due to a complete surgical resection rate than in the convexity and skull base, which suggests that GTR is the gold standard for the management of IVMs
((Pereira BJA, de Almeida AN, Paiva WS, de Aguiar PHP, Teixeira MJ, Marie SKN. Natural history of intraventricular meningiomas: systematic review. Neurosurg Rev. 2020 Apr;43(2):513-523. doi: 10.1007/s10143-018-1019-0. Epub 2018 Aug 15. PMID: 30112665.)).