Brain Biopsy with Reflex IHC Test
About Brain Biopsy with Reflex IHC Test
| Field | Value |
|---|---|
| Also Known As | Brain tissue biopsy with immunohistochemistry, Neuropathology biopsy with targeted IHC panel, Stereotactic brain biopsy with IHC, Brain histopathology with reflex IHC |
| Sample Type | Brain tissue (obtained via stereotactic needle biopsy or open craniotomy), preserved in 10% formalin |
| Fasting Required | Yes — typically 6 to 8 hours before the procedure if general anaesthesia is used; follow your surgeon's pre-operative instructions |
| Report Time | 6 days |
| Recommended For | All ages and genders; patients with suspected brain lesions, tumours, or unexplained central nervous system disorders |
| Price | Starting at ₹5,000 |
What is a Brain Biopsy with Reflex IHC Test?
A brain biopsy with reflex IHC test is a diagnostic procedure in which a small sample of brain tissue is surgically removed and examined under a microscope. The term "reflex IHC" means that if the initial microscopic examination does not give a clear diagnosis, immunohistochemistry (IHC) staining is automatically applied. IHC uses special antibodies to detect specific proteins in the tissue, helping classify the abnormality more precisely.
This test is prescribed when brain imaging, such as MRI or CT scans, reveals a lesion or abnormality that needs a tissue-level diagnosis. It is performed on patients of any age or gender when a definitive answer is needed about the nature of a brain abnormality.
What Does a Brain Biopsy with Reflex IHC Test Measure?
The test examines the collected brain tissue at a cellular level. Initial examination looks at tissue structure, while the reflex IHC panel identifies specific protein markers that help classify the condition. The key parameters assessed are listed below.
| Parameter | What It Assesses |
|---|---|
| Histopathology | Cell structure, arrangement, and presence of abnormal cells |
| IDH1 (R132H mutation0 | A change in a cell metabolism enzyme; helps classify gliomas and indicates prognosis |
| GFAP (Glial Fibrillary Acidic Protein) | Confirms whether abnormal cells originate from glial (brain support) cells |
| Ki-67 (MIB-1) | A proliferation marker that shows how quickly cells are dividing |
| ATRX | A protein whose loss points to specific glioma (brain tumour) subtypes |
| p53 | A tumour suppressor protein; overexpression may indicate malignant change |
Why is a Brain Biopsy with Reflex IHC Test Done?
A doctor may recommend a brain biopsy with reflex IHC when imaging findings alone are not sufficient to determine the cause of a brain abnormality. The sections below outline the common reasons this test is ordered.
Common Symptoms That May Require This Test
The following symptoms, particularly when persistent or worsening, may prompt a doctor to recommend this test.
- Persistent or severe headaches
- New-onset seizures or changes in existing seizure patterns
- Unexplained vision changes
- Difficulty with speech or language
- Progressive memory loss or cognitive decline
- Weakness or numbness in the arms or legs
- Noticeable personality or behavioural changes
Conditions This Test Can Help Detect
A brain biopsy with reflex IHC procedure can help identify a range of conditions affecting brain tissue. These include the following.
- Primary brain tumours such as gliomas, astrocytomas, oligodendrogliomas, and glioblastomas
- Primary central nervous system (CNS) lymphoma
- Metastatic cancer that has spread to the brain from another organ
- Brain abscesses and infections caused by bacteria, fungi, or parasites
- Autoimmune encephalitis (inflammation of the brain due to the immune system)
- Demyelinating diseases such as multiple sclerosis
- Inflammatory disorders affecting brain tissue
- Prion diseases such as Creutzfeldt-Jakob disease
How to Prepare and What to Expect
The brain biopsy with reflex IHC test procedure involves surgical tissue collection, so preparation is more involved than for a routine blood test. The following sections explain what to do before and during the test.
Do You Need to Fast?
Yes. If the biopsy is performed under general anaesthesia, fasting for 6 to 8 hours beforehand is typically required. Your surgical team will give you specific pre-operative fasting instructions based on your situation. Follow their guidance precisely.
Practical Tips Before Your Test
The following steps will help your procedure go smoothly and safely.
- Bring a detailed clinical history report, including your symptoms, previous test results, and family history, as this is required for the test.
- Inform your doctor about all medications you are currently taking, including blood thinners such as warfarin, aspirin, or clopidogrel, as some may need to be paused before surgery.
- Pre-operative assessments such as blood tests, an electrocardiogram (ECG), and chest X-rays may be arranged in the days before the procedure to confirm you are fit for anaesthesia.
- Arrange for someone to accompany you and take you home after the procedure, as anaesthesia takes time to wear off.
- Wear loose, comfortable clothing on the day of the procedure.
Step-by-Step Procedure
The following steps describe what typically happens during and after the tissue collection.
- You are given general anaesthesia so you are fully asleep and comfortable throughout the procedure.
- The neurosurgeon makes a small incision in the scalp and uses a specialised drill to create a small hole in the skull, approximately 14 mm in diameter.
- Using a computer-guided navigation system, a biopsy needle is precisely directed to the target area in the brain, and a few tiny tissue fragments (roughly the size of a grain of rice) are collected.
- The wound is closed, and a sterile dressing is applied. You are moved to a recovery area where your vital signs and neurological responses are monitored closely.
- The collected tissue is immediately placed into a container with 10% formalin solution, which preserves the sample during transport to the laboratory.
- At the laboratory, the tissue is processed, embedded in paraffin wax, and sliced into thin sections for microscopic examination. If standard staining does not provide a clear diagnosis, IHC staining with targeted antibodies is applied automatically (reflex).
Factors That Can Affect Accuracy
Several factors may influence the accuracy of the results. Being aware of these helps your doctor interpret findings correctly.
- Incomplete or missing clinical history and imaging information
- Inadequate tissue volume collected during the procedure
- Prior chemotherapy or radiotherapy, which can alter the appearance of tissue
- Improper preservation or fixation of the tissue sample before it reaches the laboratory
- Tumour heterogeneity, meaning the biopsy sample may not fully represent the whole tumour if different areas have different characteristics
Understanding Your Brain Biopsy with Reflex IHC Test Results
Results from this test are qualitative and are interpreted by a neuropathologist (a specialist in brain tissue diseases) alongside your clinical symptoms and imaging findings. The table below provides a general guide to what different findings may indicate.
| Parameter | Finding | What It May Suggest |
|---|---|---|
| Histopathology | Normal brain tissue | No evidence of tumour, infection, or inflammation |
| IDH1 mutation | Positive | Associated with certain glioma subtypes; generally linked to better prognosis |
| IDH1 mutation | Negative (wild type) | May suggest a higher-grade or more aggressive tumour |
| GFAP | Positive | Confirms the cells are of glial (brain support cell) origin |
| Ki-67 index | Low (below 5%) | Slow cell division; generally associated with a better outlook |
| Ki-67 index | High (above 15%) | Rapid cell division; may indicate a higher-grade tumour |
| ATRX | Lost | Suggests certain astrocytoma subtypes |
| p53 | Overexpressed | May indicate malignant change in cells |
"These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice."
How to Maintain Healthy Levels
Because this is a diagnostic procedure rather than a routine screening test, the focus after the test is on recovery and follow-up. The following general tips support your well-being during this period.
- Follow all post-operative care instructions from your surgical team carefully, including wound care and activity restrictions.
- Attend every scheduled follow-up appointment so your healthcare team can monitor your recovery and discuss next steps based on your results.
- Communicate openly with your doctor about any new or changing symptoms after the procedure, including headaches, confusion, or changes in vision or speech.
Lupin Diagnostics Brain Biopsy with Reflex IHC Test Price
The cost of a brain biopsy with reflex IHC test starts at ₹5,000 at Lupin Diagnostics. This test requires a visit to a Lupin Diagnostics centre; home collection is not available due to the surgical nature of the sample collection.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 5000 |
| CHENNAI | 5000 |
| HYDERABAD | 5000 |
| KOLKATA | 5000 |
| NAVI MUMBAI | 5000 |
| PUNE | 5000 |
Disclaimer: Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
The following steps explain how to book your brain biopsy with reflex IHC test online.
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred centre location.
- Visit the centre at your scheduled time for sample collection.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Frequently Asked Questions
A brain biopsy with reflex IHC test involves the surgical removal of a small piece of brain tissue for microscopic examination. 'Reflex IHC' means that if the initial examination is inconclusive, additional immunohistochemistry staining is automatically carried out to identify specific cell markers and classify the abnormality accurately.
Standard microscopy shows the shape and arrangement of cells, but different brain tumours and conditions can look similar. IHC uses targeted antibodies to detect specific proteins inside the cells, which allows the pathologist to distinguish between tumour types and conditions that would otherwise be difficult to tell apart.
A stereotactic (needle-guided) biopsy typically takes around one hour. An open surgical biopsy may take several hours. Your surgical team will give you a more precise estimate based on your individual case.
The procedure is performed under general anaesthesia, so you will not feel anything during it. Some patients experience a headache afterwards, and pain relief will be provided. Most patients find the discomfort manageable with standard medication.
Basic histopathology results are usually available within 5 to 7 days. If reflex IHC staining is needed, the full report may take up to 14 days. Lupin Diagnostics aims to deliver reports within 6 days; your doctor will advise you on the expected timeline for your specific case.
Brain biopsy is generally a safe procedure. Published data indicate that the large majority of procedures are uncomplicated, and serious complications or mortality occur in a very small number of cases. Your neurosurgeon will discuss the specific risks relevant to your situation before the procedure.
Your treating doctor and neuropathologist will review the findings together with your imaging results and clinical history. The results will guide decisions about further treatment or management. Your doctor will explain what the findings mean for you and recommend the appropriate next steps.
Brain Biopsy with Reflex IHC Test
