Brain Tumor Resection

Brain tumor resection is a neurosurgical operation in which a surgeon removes all or part of an abnormal growth (tumor) from inside the skull.

The surgeon opens the skull — a step called a craniotomy (opening of the skull bone) — to reach the tumor directly. Depending on where the tumor sits and how deeply it has grown into brain tissue, the goal may be to remove the entire tumor or to reduce its size enough to relieve pressure on the brain and improve symptoms. Removing tumor tissue also allows a pathologist (a doctor who studies tissue under a microscope) to confirm exactly what type of tumor it is, which guides all further treatment.

Brain tumor resection is considered when a growth inside the skull is causing symptoms, growing, or needs to be identified. The decision to operate depends on the tumor's size, location, type, and the patient's overall health.

• Primary brain tumors — tumors that start in the brain itself, such as glioma (a tumor arising from the brain's supporting cells) or meningioma (a tumor growing from the membrane that wraps the brain)
• Brain metastases — cancer that began elsewhere in the body and has spread to the brain
• Tumors causing increased intracranial pressure (raised pressure inside the skull), leading to severe headaches, vomiting, or vision changes
• Tumors pressing on areas that control movement, speech, or other vital functions
• Tumors causing seizures (sudden, uncontrolled electrical activity in the brain) that cannot be controlled with medication
• Tumors whose exact type is still unknown and must be confirmed by biopsy (tissue sampling) combined with resection

There are situations where full surgical removal may not be appropriate. Your neurosurgeon will carefully weigh these before recommending the operation.

• Tumors located in areas of the brain that are too critical to operate on safely, such as the brainstem (the part that controls breathing and heart rate)
• Very small tumors that are not yet causing symptoms and are being watched
• Patients whose general health is too poor to safely undergo general anesthesia (deep sleep during surgery)
• Certain blood cancers that affect the brain and respond better to chemotherapy or radiation alone
• Multiple tumors spread widely through the brain, where surgery would not remove enough to make a meaningful difference

Brain tumor resection is a major operation, and like all brain surgery it carries real risks; your surgical team will discuss which of these apply most to your specific situation.

• Brain swelling (edema) in the days after surgery, which may require medication or further treatment
• Bleeding inside the skull (intracranial hemorrhage) during or after the operation
• Infection of the wound, the bone flap, or the fluid surrounding the brain (meningitis — infection of the brain's protective membranes)
• New or worsened neurological deficits — weakness, numbness, or difficulty speaking — if healthy brain tissue near the tumor is affected
• Seizures (sudden, uncontrolled electrical activity in the brain) in the post-operative period
• Blood clots forming in the legs (deep vein thrombosis) or travelling to the lungs (pulmonary embolism) due to reduced movement after surgery
• Cerebrospinal fluid leak (CSF leak) — leakage of the protective fluid that surrounds the brain
• Reaction to general anesthesia, including breathing difficulties or cardiovascular complications
• Incomplete removal of the tumor, meaning further surgery, radiation, or chemotherapy may still be needed
• In rare cases, stroke (loss of blood supply to part of the brain) during or after surgery

Preparation for brain tumor resection usually begins several days before the operation and involves both lifestyle adjustments and a series of medical tests. Your neurosurgical team will give you specific instructions, but the general steps below are common across most hospitals.

Lifestyle and medication adjustments before surgery typically include the following:

• Fasting — most patients are asked to stop eating solid food for at least six hours and to stop drinking clear liquids for at least two hours before the scheduled start time, though your team will confirm the exact window
• Blood thinners — medications that prevent blood clotting are usually paused for several days before surgery to reduce the risk of uncontrolled bleeding; your doctor will advise when to stop
• Anti-seizure medications — if you are already taking these, your team will tell you whether to continue them on the day of surgery with a small sip of water
• Smoking — smoking impairs wound healing and lung function, so patients are usually advised to stop as far in advance as possible
• Alcohol — regular or heavy alcohol use can affect anesthesia and bleeding; the team will ask about this and may advise stopping beforehand

The following tests and assessments are commonly carried out before the operation to map the tumor and confirm the patient is fit for surgery:

• MRI of the brain — often with a special contrast dye injected into a vein — to create a detailed three-dimensional map of the tumor's exact location, size, and relation to critical brain structures
• CT scan of the brain for bone and surgical planning
• Functional MRI (fMRI) or brain mapping studies in some cases, to identify which parts of the brain control speech and movement so the surgeon can avoid them
• Blood tests including a full blood count, clotting profile, kidney and liver function, and blood type and crossmatch in case a transfusion is needed
• EKG (electrocardiogram, a recording of the heart's electrical activity) and chest X-ray to check heart and lung health before general anesthesia
• Neuropsychological assessment (a detailed test of memory, language, and thinking skills) in some centers, to give a baseline before surgery
• Consultation with a neuro-anesthesiologist (an anesthesiologist who specializes in brain surgery) to review all medications and plan safe sedation

On the day of surgery, the procedure itself typically follows these steps:

• 1. The patient is admitted and a nurse places an intravenous (IV) line in the arm for fluids and medications.
• 2. The neuro-anesthesiologist gives general anesthesia so the patient is completely asleep and feels nothing during the operation. In selected cases where the tumor is near speech or movement areas, an awake craniotomy (the patient is kept awake for part of the operation to monitor brain function in real time) may be performed instead.
• 3. The patient's head is secured in a rigid frame to prevent any movement during surgery.
• 4. The neurosurgeon shaves a portion of the scalp, cleans the area, and makes a carefully planned incision (cut) in the scalp.
• 5. A section of skull bone — called the bone flap — is temporarily removed to expose the brain.
• 6. Using an operating microscope and, in many hospitals, a neuronavigation system (a real-time GPS-like guide for the brain), the surgeon locates and removes the tumor.
• 7. Intraoperative MRI or ultrasound may be used in some centers to check how much tumor has been removed before closing.
• 8. The bone flap is replaced and secured with small titanium plates and screws, and the scalp is closed with sutures or staples.
• 9. The patient is taken to the ICU (intensive care unit) or a dedicated neurosurgical monitoring unit to be watched closely as the anesthesia wears off.

Recovery after brain tumor resection happens in stages — first in a closely monitored hospital setting, then gradually at home. The pace of recovery varies considerably depending on the tumor's location, how much tissue was involved, and each patient's overall health. Your medical team will tailor the aftercare plan to your specific situation.

• Hospital monitoring: Most patients spend at least the first night in the ICU or a neurosurgical high-dependency unit, where nurses check neurological function — responsiveness, speech, limb movement — frequently. The general ward stay that follows usually lasts several days to a week or more, depending on how recovery progresses.
• Steroids and anti-seizure medications: Doctors commonly prescribe steroids (to reduce brain swelling) and anti-seizure drugs in the days after surgery; the duration is decided by the treating team.
• Wound care: The scalp incision is typically closed with sutures or staples that are removed in clinic after about one to two weeks. The area should be kept clean and dry as directed, and any redness, swelling, or fluid leaking from the wound should be reported promptly.
• Activity restrictions: Strenuous physical activity, heavy lifting, and driving are usually restricted for several weeks. The exact timeline is set by the neurosurgeon based on how the patient is healing.
• Neurological rehabilitation: If surgery has affected speech, movement, memory, or swallowing, a rehabilitation programme involving physiotherapy (movement therapy), occupational therapy (everyday function training), and speech therapy is usually arranged before discharge.
• Follow-up imaging: An MRI of the brain is typically scheduled within days after surgery to assess how much tumor was removed, and then at regular intervals — often every few months initially — to watch for regrowth.
• Oncology referral: Once the pathology result confirms the tumor type, most patients are referred to a neuro-oncologist (a cancer specialist who focuses on brain tumors) to discuss whether radiation therapy, chemotherapy, or targeted therapy is needed.
• Driving and return to work: These are guided by local regulations and the patient's neurological recovery; the treating doctor will advise when it is safe to resume both.
• Headaches and fatigue: Mild headaches and significant tiredness are very common in the weeks after craniotomy and usually improve gradually. Any sudden severe headache, new weakness, or change in consciousness should be reported to the medical team immediately.
• Emotional support: Anxiety and low mood are common after brain surgery. Many centers offer access to neuropsychologists or counsellors as part of the recovery programme.