The endoscopic trans-ventricular route is an option for patients with certain tumors and cysts within the ventricles: colloid cysts, gliomas, metastatic brain tumors and pineal region tumors. This approach can help achieve the following:
Alleviation of hydrocephalus by performing an endoscopic third ventriculostomy (ETV):
This decreases the necessity of ventriculoperitoneal shunt placement with its associated morbidity.
Biopsy of tumor:
A subset of these tumors can be treated with a combination of chemotherapy and radiation and biopsy alone is sufficient in these cases.
Tumor or cyst resection:
For most colloid cysts and select tumors, the lesion can be resected with the endoscopic instruments, decreasing the need for an open craniotomy.