Intraventricular meningiomas.

Intraventricular meningiomas are rare tumors that are generally located in the trigone of the lateral ventricle. This area is deep inside the cerebral hemisphere, adjacent to important eloquent cortical areas. Hence, it is difficult to achieve total tumor resection without any complications or new neurologic morbidity. To improve surgical outcome, selection of proper surgical approach is important; however, the use of modern neurosurgical techniques may be equally, if not more, consequential. Recently, radiosurgery has been gaining some attention as an alternative treatment modality. This chapter reviews some of the clinical characteristics and technical considerations for surgical modalities in treating intraventricular meningiomas. In addition, brief introduction of radiosurgery is presented.