Interhemispheric-Transcortical Approach for Resection of an Atypical Teratoid/Rhabdoid Tumor (AT/RT) of the Left Lateral and Third Ventricle.
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INTRODUCTION: Atypical teratoid/rhabdoid tumors (AT/RT) are malignant central nervous system (CNS) tumors that represent 3% of all pediatric CNS tumors. Majority of cases have SMARCB1 gene mutations and historically carried a poor prognosis. CASE PRESENTATION: A 9-year-old boy was diagnosed with a third ventricle AT/RT and initially underwent endoscopic surgical biopsy. Subsequent tumor resection was completed using an interhemispheric-transcortical approach. LESSONS: Surgical approaches to ventricular system must be tailored to the tumor characteristics on a case-by-case basis. We present a case using a transcortical approach for understanding of the microsurgical anatomy for safe resection of a third ventricle AT/RT.