Interhemispheric transcallosal route for resection of anterior third ventricular lesions

“Interhemispheric transcallosal route for resection of anterior third ventricular lesions“ Aaron A. Cohen-Gadol, MD, MSC Goodman Campbell Brain and Spine, Indiana University Department of Neurological Surgery, Indianapolis, Indiana Anterior third ventricular lesions present with a variety of symptoms related to cerebrospinal fluid flow obstruction and mass effect. Colloid cysts are among the most common lesions in the region. They usually present with ventriculomegaly, leading to headaches, vertigo, or, rarely, decreased mental status due to the development of acute hydrocephalus. Many patients become aware of their asymptomatic colloid cysts during imaging evaluation related to other conditions. Symptomatic cysts require removal, and larger asymptomatic colloid cysts (greater than 1cm) in younger patients may also need to be excised despite a lack of symptoms. A variety of surgical routes have been described to access and remove colloid cysts. Endoscopic approaches are least invasive and provide ade