Overview

Stereotactic brain biopsy is a minimally invasive neurosurgical procedure used to obtain a small tissue sample from an abnormal part of the brain for diagnostic purposes. It is usually done when imaging tests, such as MRIs or CT scans, show a lesion, tumour, or inflamed area that needs to be accurately identified. Stereotactic means using advanced imaging and computer-guided navigation systems to precisely target a certain part of the brain. This method lets surgeons reach deep or sensitive areas of the brain with minimal damage to the surrounding tissue. The main goal is to make an accurate diagnosis and help plan the appropriate treatment.

Why It’s Done
When imaging alone can't clearly show a brain lesion, a stereotactic brain biopsy is done. It helps distinguish between tumours, infections, inflammatory conditions, and other problems. To determine whether surgery, radiation therapy, chemotherapy, or medical treatment is needed, an accurate diagnosis is essential. The procedure provides important information without the risks associated with larger open brain surgeries.

What to Expect?
Before the procedure, detailed imaging tests such as MRI or CT scans are performed to identify the exact location of the problem. To ensure the patient is medically stable, blood and neurological tests are performed. A stereotactic frame or frameless navigation system is used to guide the surgeon exactly to the target area during the procedure. You can get local anaesthesia with sedation or general anaesthesia. A small cut is made in the scalp, and a small hole is drilled in the skull. To get tissue samples, a biopsy needle is carefully put into the brain. The samples are sent to a lab for examination under a microscope. After the procedure, the patient's neurological status, headache, and bleeding are closely monitored. Imaging may be repeated to ensure there are no problems.

Recovery & Outlook
It usually takes less time to recover from a stereotactic brain biopsy than from an open brain surgery. You might get a mild headache or sore scalp for a short time. Most patients can resume light activities in a few days. The test results are very important for deciding what to do next. When performed by skilled neurosurgical teams, the procedure is usually safe and provides useful information to guide treatment, leading to better long-term results.