• Childs Nerv Syst · Apr 2017

    A comparison of clinicopathological features and surgical outcomes between pediatric skull base and non-skull base meningiomas.

    • Zhicen Li, Hao Li, Yuming Jiao, and Ji Ma.
    • Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.6 Tiantanxili, Beijing, 100050, China.
    • Childs Nerv Syst. 2017 Apr 1; 33 (4): 595-600.

    ObjectThe purpose of this study is to analyze and compare the clinicopathological characteristics and surgical outcomes between skull base and non-skull base meningiomas in pediatric population.MethodsWe retrospectively analyzed a total of 140 cases of pediatric meningiomas surgically treated in our department from January 2005 to July 2015 and compared the clinicopathological characteristics and surgical outcomes between skull base and non-skull base meningiomas.ResultsOf all the pediatric meningiomas, 50 (35.8 %) were located at the skull base and 90 (64.2 %) were located at the non-skull base. Skull base and non-skull base meningiomas had a similar sex distribution (male/female = 1:1 in skull base meningiomas and male/female = 1.5:1 in non-skull base meningiomas) (P = 0.288) and high-grade meningioma occurrence rate (P = 0.569). In addition, the mean age of non-skull base meningiomas was 12.5 years which was younger than that of skull base meningiomas (14.2 years) (P = 0.019), and the preoperative tumor size was smaller in skull base (mean size = 4.7 cm in skull base meningiomas and mean size = 5.7 cm in non-skull base meningiomas) (P = 0.020). Gross total resection was achieved in 64 non-skull base patients (73.9 %) and 26 skull base patients (52 %) (P = 0.046). Patients with gross total resection had better progression free survival (PFS) than those with subtotal resection.ConclusionPediatric skull base and non-skull base meningiomas are similar in sex distribution and high-grade meningioma occurrence rate. In comparison with non-skull base ones, pediatric skull base meningiomas occur at elder age and are smaller in size and they are more likely to be incompletely resected. Gross total resection and early treatment are recommended to prolong PFS of pediatric patients.

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