Adult brainstem ganglioglioma bulging into the fourth ventricle

SummaryThe authors present a case report of a 43-year-old female patient with ganglioglioma of the brainstem, which is an unusual location for the adult type of ganglioglioma. The sitting position and telovelar approach were used, and the tumor was totally removed with comprehensive intraoperative neuromonitoring. The ganglioglioma was an intra-axial tumor infiltrating the brainstem; however, adjuvant radiotherapy was not used. The preoperative characteristics, surgical techniques, outcome, and distinct treatment strategy are discussed.