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Foramen magnum meningiomas (FMMs) account for 1.8–3.2% of all meningiomas. With this systematic review and meta-analysis, our goal is to detail epidemiology, clinical features, surgical aspects, and outcomes of this rare pathology.
The 10-year overall survival rate of WHO grades I, II, and III tumors are 83.7%, 53%, and 0%, respectively, despite aggressive therapy efforts [1,79]. Benign and malignant spinal meningiomas had a higher 10 year survival rate of 95.6% and 73.4%, respectively, than benign and malignant cerebral meningiomas of 83.2% and 55.7%, respectively .
Twenty patients were analyzed [Table 1], with a mean follow-up period of 110 months (range 0–241). The mean age at presentation was 37.8 years old (range 19–53). We noticed a female (65%) and left side (50%) predominance. Both sides were affected in 25% of cases.
The surgical approach in meningiomas of the foramen magnum is important because of adjacency and adherence of the mass to neurovascular formations. Surgical and postoperative results are better in those located posterior or posterolateral sites; and total excision rates are higher.
Foramen magnum meningiomas (FMMs) are commonly found in women, with a mean age at onset of 52 years old. They generally behave more aggressively than other meningiomas. Materials and methods: We performed epidemiological, anatomical and surgical analyses of 20 patients diagnosed with FMMs who underwent surgical treatment from 1999 to 2019 at ...
This article is an excellent review of the surgical management of foramen magnum meningioma described by one of the most experienced skull base surgeons. In this paper Professor George details his experience and understanding of the different types of foramen magnum meningiomas.
Despite the morbidity, long-term recurrence-free survival is achievable with maximal safe resection and adjuvant radiation. Keywords: approach; complications; foramen magnum; management; meningioma; outcomes; surgical technique; vertebral artery.
The Karnofsky performance score improved in average after surgical treatment (75 vs. 81, < 0.001). Our meta-analysis shows significant rates of GTR in cohorts with a majority of posterior and laterally located FMM ( = 0.025) and. with a mean tumor less than 25 mm ( < 0.05).
Meningiomas of the foramen magmun (FMM) account for 0.3% to 3.2% of all meningiomas, between 4.2% and 20% of all posterior fossa meningiomas and 8.6% of all spinal meningiomas [ 1 ].
For malignant meningioma, the 5-year survival rate is over 66%. This means over 66 out of 100 patients with malignant meningioma can expect to live for at least 5 years or more. The 10-year survival rate is over 59%.