It is generally accepted that complete or nearly complete surgical removal of a brain tumor is beneficial for a patient. The neurosurgeon's challenge is to remove as much tumor as possible, without injuring brain tissue important to the patient's neurological function (such as the ability to speak, walk, etc.). Traditionally, neurosurgeons open the skull through a craniotomy to insure they can access the tumor and remove as much of it as possible. A drain (EVD) may be left in the brain fluid cavities at the time of surgery to drain the normal brain fluid as the brain recovers from the surgery.

To learn more about Craniotomy for tumors, visit AANS.org

Information sourced from https://www.aans.org/Patients/Neurosurgical-Conditions-and-Treatments/Br...