Stereotactic Radiosurgery for Cushing Disease: Results of an International, Multicenter Study Single-session Gamma Knife radiosurgery for optic pathway/hypothalamic gliomas Hearing preservation after Gamma Knife radiosurgery for cerebellopontine angle meningiomas Outcome of lumbar trans-pedicular fixation in management of recurrent lumber disc herniation THE NATURAL COURSE OF INCIDENTAL INTRACRANIAL MENINGIOMAS: SYSTEMATIC REVIEW AND META-ANALYSIS. Role of hydroxyurea as an adjuvant treatment after Gamma knife radiosurgery for atypical (WHO grade II) meningiomas Gamma knife radiosurgery for cerebellopontine angle epidermoid tumors Upfront Gamma Knife radiosurgery for Cushing’s disease and acromegaly: a multicenter, international study Hypopituitarism after Gamma Knife radiosurgery for pituitary adenomas: a multicenter, international study The benefit and risk of stereotactic radiosurgery for prolactinomas: an international multicenter cohort study Volume-staged gamma knife radiosurgery for large brain arteriovenous malformations. Technique of Whole-Sellar Stereotactic Radiosurgery for Cushing Disease: Results from a Multicenter, International Cohort Study Gamma Knife Radiosurgery for Management of Peri-optic Meningiomas P01.006 GAMMA KNIFE RADIOSURGERY FOR DIFFUSE LOWGRADE GLIOMAS: AN EGYPTIAN EXPERIENCE. P05.05 Gamma knife radiosurgery for foramen magnum meningiomas: a single centre study P03.06 Cavernous malformations of the brainstem: radiosurgical management with gamma knife OS8.3 Gamma knife radiosurgery for large meningiomas: 10 years of experience P03.08 Large cerebral arteriovenous malformations management with Volume-staged gamma knife radiosurgery P03.07 Radiosurgical managementof trigeminal schwannomas: A single center experience P05.06 Hearing preservation after gamma knife radiosurgery for cerebellopontine angle meningiomas Early versus late Gamma Knife radiosurgery for Cushing’s disease after prior resection: results of an international, multicenter study Effect of Anatomic Segment Involvement on Stereotactic Radiosurgery for Facial Nerve Schwannomas: An International Multicenter Cohort Study Pedicular lumbosacral spine fusion for adult/adolescent lumbar developmental high-grade spondylolisthesis Stereotactic Radiosurgery for Perioptic Meningiomas: An International, Multicenter Study Single-Session Stereotactic Radiosurgery for Large Benign Meningiomas: Medium-to Long-Term Results Factors Affecting the Outcome of Endoscopic Endonasal Transsphenoidal Surgery for Functioning Pituitary Adenomas P14.67 Long-term results of gamma knife radiosurgery for treatment of intracranial glomus jugulare tumors Stereotactic radiosurgery for clinoid meningiomas: a multi-institutional study Stereotactic Radiosurgery for Olfactory Groove Meningiomas: An International, Multicenter Study Stereotactic radiosurgery for asymptomatic petroclival region meningiomas: a focused analysis from the IMPASSE study An international multicenter matched cohort analysis of incidental meningioma progression during active surveillance or after stereotactic radiosurgery: the IMPASSE study Stereotactic radiosurgery versus active surveillance for asymptomatic, skull-based meningiomas: an international, multicenter matched cohort study Stereotactic Radiosurgery for Incidentally Discovered Cavernous Sinus Meningiomas: A Multi-institutional Study Stereotactic radiosurgery for intracranial chordomas: an international multiinstitutional study Comparison of Active Surveillance to Stereotactic Radiosurgery for the Management of Patients with an Incidental Frontobasal Meningioma—A Sub-Analysis of the IMPASSE Study Stereotactic Radiosurgery Compared With Active Surveillance for Asymptomatic, Parafalcine, and Parasagittal Meningiomas: A Matched Cohort Analysis From the IMPASSE Study Clinical and radiologic outcomes after stereotactic radiosurgery for meningiomas in direct contact with the optic apparatus: an international multicenter study