Eighteen patients (53%) experienced local CNS recurrence, while 21 (62%) experienced any CNS recurrence/metastasis, whether local at initial resection site or distant within the CNS and neuraxis. Considering all three endpoints (local CNS recurrence nested within any CNS recurrence/metastasis nested within PFS), both GTR and treatment with peri-operative radiotherapy were associated with decreased global CNS recurrence/metastasis and PFS, and local CNS recurrence, respectively. 2021;23(8):1231-1251. doi:10.1093/neuonc/noab106 16 Giordan E, Marton E, Wennberg AM, Guerriero A, Canova G. A review of solitary fibrous tumor/hemangiopericytoma tumor and a comparison of risk factors for recurrence, metastases, and death among patients with spinal and intracranial tumors. [Extracted from the article]