If a meningioma has been completely resected then the prognosis is excellent.
Five-year survival for typical meningiomas exceeds 80%, but is poorer (5-year survival <60%) in malignant and atypical meningiomas. Papillary and haemangiopericytic morphology, large tumour size, high mitotic index, absence of progesterone receptors, deletions and loss of heterozygosity are poor prognostic factors. Complete surgical excision is the standard treatment.
Rarely atypical and anaplastic types of meningiomas can metastasise.
Recurrence is dependent upon the extent of tumour excision. It is seen in up to one third of patients followed for more than 10 years.
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