Interhemispheric transchoroidal approach to resect third ventricular teratoma
The authors demonstrate an interhemispheric transchoroidal approach for third ventricular teratoma resection. Interhemispheric dissection exposed the corpus callosum at a length of about 2 cm. A callosotomy was made to enter into the right lateral ventricle. After septal vein ligation, dissection was made of the space between the right fornix and right internal cerebral vein (ICV); thus bilateral fornix and left ICV would be retracted to the left; right choroid plexus, right ICV to the right. By this transchoroidal approach, the foramen of Monro was extended posteriorly, providing enough of a surgical corridor to resect a posteriorly located third ventricular tumor. Yuki Ito, MD,1 Tomohiro Inoue, MD, PhD,1 Akira Tamura, MD, PhD,1 and Kazuo Tsutsumi, MD, PhD2 1Department of Neurosurgery, Fuji Brain Institute and Hospital, Shizuoka, Japan; and 2Department of Neurosurgery, Showa General Hospital, Tokyo, Japan
