Although surgery is considered to be the first step of treatment in any form of tumor but its feasibility depends upon the type, size and location of the tumor. It is not necessary that every kind of brain tumor might require surgery.
Brain Tumor Surgery
Diagnosis of the type of tumor by taking a sample of the tumor for laboratory examination
Complete resection of tumor
Removal of the tumor as much as possible to slow down its growth and improve the symptoms.
Remove the tumor in order to help other treatments
Provide direct access for other forms of treatment like chemotherapy, radiotherapy etc.
To relieve pressure caused by tumor on surrounding structures
Types of Brain Tumor Surgery
The different types of surgery that are performed in cases of brain tumor include the following:
Craniotomy: Craniotomy is the most commonly performed procedure by the surgeon to remove the brain tumor along with a piece of bone. The removed bone is replaced and the tumor is sent for histopathology (biopsy). The surgery is performed using a high-end microscope by any of the following techniques:
Extended bifrontal craniotomy
“Eyebrow” craniotomy (supra-orbital craniotomy)
“Keyhole” craniotomy (retro-sigmoid craniotomy)
Shunt: A narrow piece of flexible tube with a pressure regulated valve in between is called a shunt. This is used to relieve the intracranial pressure caused by obstruction of the natural brain fluid (CSF) pathway by tumor mass. The procedure involves insertion of a drainage system into the brain to remove or drain excess of blocked fluid into the peritoneal cavity.
Stereotactic surgery: This surgery is done by creating a three-dimensional image called stereotaxy using computers. It aims to find out the location and position of the tumor. In fact it can also be done to aid tumor removal, implant radiation pellets or for other treatments.
Embolization: It is a procedure used by the surgeon to reduce the amount of blood supply to a tumor by blocking the blood flow in the selected arteries. It is generally performed before the main surgery.
Endoscopy and endoscope assisted surgery : Endoscope is the tool which helps the surgeon to closely visualize the tissue through small openings in difficult to reach areas. This tool can be used in various brain surgeries to precisely reach the target location without damaging the adjacent structures.
Other surgeries: In addition to above mentioned surgeries, following surgeries may also be performed in relation to brain tumor treatment:
Photodynamic laser surgery
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