Gamma knife radiosurgery outcomes for identified bilateral cavernous sinus meningiomas: A retrospective case series report

Abstract

Objective: This retrospective case series aims to report five radiological identified patients with symptomatic bilateral CSMs treated with GKRS and analyze the outcomes. Results: All reported patients were females; the median age at presentation was 45 years and the median follow-up period was 74 months (range 40–132 months). Four patients (83.3%) achieved clinical control, including improvement in CNs function in 3 patients, and one remained stable. Tumor control was achieved in 4 patients (80%), two achieved tumor size reduction, and two remained. Following GKRS, the estimated survival free of radiographic tumor progression rates at 3, 5, and 7 years were 100%, 80%, and 75%, respectively. Conclusion: GKRS offered safe and effective long-term tumor and clinical control for small to medium-sized symptomatic benign bilateral CSM as much as it usually does with solitary cavernous sinus meningioma.