Department of Neurological Surgery, Center for Skull Base and Pituitary Surgery, Neurological Institute of New Jersey, University of Medicine and Dentistry of New Jersey, New Jersey Medical School, Newark, New Jersey 07101, USA.
Neurosurg Focus. 2013 Jan;34(1 Suppl):Video 3. doi: 10.3171/2013.V1.FOCUS12353.
The interhemispheric transcallosal approach is a versatile approach to access intraventricular tumors of the lateral and third ventricles. The advantages of using a transcallosal approach over a classical transcortical approach include a direct midline orientation with symmetrical access to both lateral ventricles and both walls of the third ventricle. In addition, violation of the cerebral cortex and the risk of postoperative seizures can be avoided. Central neurocytomas are rare benign tumors that represent approximately 0.1 to 0.5% of all primary brain tumors. They are typically located in the lateral ventricles and tend to present clinically with hydrocephalus. Currently, surgical removal with a gross-total resection is the treatment of choice. In this operative video manuscript, the author demonstrates an illustrative step-by-step technique for microsurgical resection of a large central neurocytoma involving both lateral ventricles in a patient with hydrocephalus using the interhemispheric transcallosal approach. A complete removal was performed without the need for permanent shunting. The operative technique and surgical nuances, including the surgical approach, intraventricular tumor removal, and closure are illustrated in this video atlas. The video can be found here: http://youtu.be/KzC8QYsTKeg. (http://thejns.org/doi/abs/10.3171/2013.V1.FOCUS12353)
胼胝体间入路是一种用于进入侧脑室和第三脑室的脑室肿瘤的通用方法。与经典的皮质造瘘术相比，使用胼胝体间入路有以下优势：可直接对准中线，对侧脑室和第三脑室的两侧壁均可获得对称入路；此外，还可以避免破坏大脑皮质和术后癫痫发作的风险。中枢神经细胞瘤是一种罕见的良性肿瘤，约占所有原发性脑肿瘤的 0.1%至 0.5%。它们通常位于侧脑室，临床上常表现为脑积水。目前，手术切除并实现大体全切除是首选的治疗方法。在本手术视频中，作者展示了一例脑积水患者使用双侧侧脑室间胼胝体间入路进行的大型中枢神经细胞瘤显微切除术的分步技术，该肿瘤累及双侧侧脑室。手术无需永久性分流即可实现完全切除。本视频图谱详细介绍了手术技术和手术要点，包括手术入路、脑室肿瘤切除和关颅。视频可在此处找到：http://youtu.be/KzC8QYsTKeg。（http://thejns.org/doi/abs/10.3171/2013.V1.FOCUS12353）
