Water Dripping From the Nose for 3 Months – It Was Brain Fluid: A True Case of CSF Rhinorrhoea Treated in Thane
By Dr. Bharat Shinde | Neurosurgeon in Thane
It’s Probably Just Sinusitis – But What If It Isn’t?
Imagine a 55-year-old woman from Thane who notices clear water dripping from her nose every single day for three months. No fever. No cold. No allergy. Just a steady, silent drip more when she bent forward or sat upright.
She assumed it was a sinus problem. It wasn’t.
It was cerebrospinal fluid (CSF) the same protective liquid that cushions her brain leaking silently through a small hole at the base of her skull, directly into her nasal cavity.
This condition, called CSF rhinorrhoea, is rare, often misdiagnosed, and potentially life-threatening if left untreated. As a neurosurgeon in Thane, I see cases like hers that travel from across Mumbai and the surrounding districts before finally getting the right diagnosis.
What Is CSF Rhinorrhoea? (The Condition Most Doctors Miss)
Your brain and spinal cord are surrounded by a fluid called cerebrospinal fluid (CSF). This fluid is enclosed within a layered membrane called the dura mater, which lines the inside of the skull. When there is a structural defect in the skull base the bony floor of the skull CSF can escape from this enclosure and drain into the nose. The result: a persistent watery nasal discharge that looks exactly like a runny nose.
Red flags that suggest CSF leak rather than sinusitis:
– Clear, watery discharge (not mucus)
– Worse when bending forward or straining
– No associated fever, sneezing, or allergy symptoms
– Unilateral (one nostril)
– Salty or slightly sweet taste
This condition is frequently confused with allergic rhinitis or sinusitis for months sometimes years before the correct diagnosis is made.
Her Case: The 3-Month Ordeal That Almost Became Meningitis
Our patient a 55-year-old homemaker from Thane had visited general practitioners and an ENT specialist before coming to our neurosurgery clinic at NeuroSpine Thane.
Timeline:
– Month 1-2: Treated for allergic rhinitis with antihistamines no improvement
– Month 3: Discharge increased; she noticed it was much worse while sitting and bending forward
– Referral to neurosurgery: Clinical suspicion of CSF leak raised
The position-dependent nature of her discharge more when bending forward, less when lying down is a hallmark sign of a skull base CSF leak. Gravity pulls the fluid toward the nose when the head is positioned below the defect.
How We Confirmed the Diagnosis
Step 1 – High-Resolution CT Scan of the Skull Base
A dedicated CT scan of the skull base revealed a small but definite bony defect in the floor of the skull. This gap was the structural doorway through which CSF was escaping into the nasal cavity. CT scan is the first-line imaging tool for identifying the anatomical location of the defect.
Step 2 – MR Cisternography
To confirm that active CSF leak was occurring through this defect, we performed MR Cisternography an advanced MRI technique where contrast is introduced into the CSF space. The scan maps the flow of fluid and pinpoints exactly where it is leaking.
This two-step imaging approach allowed us to:
– Confirm the diagnosis definitively
– Plan the surgical approach with precision
– Minimise intraoperative surprises
The Surgery: Endoscopic Skull Base Repair – No Cuts, No Shaving
Once the diagnosis was confirmed, the patient underwent Endoscopic Endonasal Skull Base Repair a minimally invasive procedure performed entirely through the nostrils.
How the procedure works:
- Endoscope inserted through the nose a thin, lighted camera navigates through the nasal passages to reach the skull base. No skin incision is required.
- Defect identified using the pre-operative MR Cisternography map, the bony defect is located with precision.
- Multi layer repair the hole is sealed using a combination of tissue graft (often from the patient’s own nasal lining or fat) and biological fibrin glue, creating a watertight seal.
- Post operative confirmation the patient is observed for cessation of CSF flow. Lumbar drainage may be placed temporarily to reduce CSF pressure during healing.
Result: Zero CSF leak. Complete recovery.
The patient was discharged within a few days, experienced no further nasal discharge, and has had no recurrence at follow-up.
What Would Have Happened If She Had Waited?
This is the part most people don’t realise. A CSF leak is not just an inconvenience it is an open connection between the nasal cavity (a bacteria-rich environment) and the brain. Every day the defect remained open, bacteria had a potential pathway directly into the intracranial space.
Complications we prevented by treating her in time:
Bacterial Meningitis – The most feared complication of untreated CSF leak. Bacteria from the nose can ascend through the defect and infect the meninges (brain lining), causing a potentially fatal emergency. Population studies suggest patients with untreated skull base CSF leaks have significantly elevated meningitis risk over time.
Brain Abscess – Prolonged or recurrent bacterial seeding can cause pus formation within the brain tissue a condition requiring emergency neurosurgery and carrying a high morbidity risk.
Pneumocephalus – Air can enter through the same skull base defect into the intracranial cavity. This can cause severe headaches, confusion, and in tension pneumocephalus, a rapidly deteriorating neurological emergency.
Recurrent Meningitis (Mollaret’s Meningitis) – Some patients with untreated skull base defects develop repeated episodes of bacterial meningitis before the source is ever identified.
She came to us in time. Not everyone does.
Why Timely Neurosurgical Consultation Matters in Thane and Mumbai
Skull base CSF leaks are under-recognised in routine clinical practice. Many patients are managed for years under diagnoses of allergic rhinitis, vasomotor rhinitis, or post-nasal drip all while the real risk silently accumulates. If you or a family member in Thane, Navi Mumbai, Kalyan, Dombivli, Bhiwandi, or the greater Mumbai region have been experiencing:
– Persistent, clear watery nasal discharge
– Discharge worsens on bending forward
– Recurrent unexplained headaches with nasal symptoms
– History of recurrent meningitis with no clear cause
– Prior head injury or skull base fracture
…please do not delay a neurosurgical evaluation.
At NeuroSpine Thane, we offer comprehensive skull base assessment including advanced MRI cisternography evaluation and minimally invasive endoscopic repair by an experienced neurosurgeon in Thane.
About Dr. Bharat Shinde Neurosurgeon in Thane
Dr. Bharat Shinde is a specialist neurosurgeon based in Thane, with expertise in skull base surgery, spine surgery, and minimally invasive neurosurgical techniques. He consults and operates for patients across Thane, Mumbai, Navi Mumbai, and the Konkan belt.
NeuroSpine Thane offers advanced neurosurgical care close to home so patients in Thane and surrounding areas no longer need to travel to South Mumbai or Pune for complex brain and spine procedures. Serving patients from: Thane, Mulund, Airoli, Belapur, Kalyan, Dombivli, Bhiwandi, Mira Road, Vasai, and across the Mumbai Metropolitan Region
Frequently Asked Questions About CSF Leak (Skull Base Defect)
Q: Can a CSF leak heal on its own?
Some small traumatic CSF leaks do resolve with conservative management (bed rest, lumbar drainage). However, spontaneous skull base defects as in this patient’s case rarely heal without surgical repair. The longer they persist, the higher the infection risk.
Q: Is endoscopic skull base surgery safe?
Yes. Endoscopic endonasal surgery has become the gold standard for skull base CSF leak repair at experienced centres. It avoids external incisions, is associated with shorter hospital stays, and has high success rates in appropriately selected patients.
Q: How long does recovery take after CSF leak repair?
Most patients are discharged within 3-5 days. Activity restrictions (avoiding nose blowing, straining, heavy lifting) are advised for 4-6 weeks to allow the repair to consolidate.
Q: Is this surgery available in Thane?
Yes. Dr. Bharat Shinde at NeuroSpine Thane performs endoscopic skull base repair for CSF rhinorrhoea. Patients from Thane and surrounding districts do not need to travel to Mumbai city for this procedure.
Q: What is the cost of CSF leak surgery in Thane?
Surgery costs vary based on the complexity of the defect, anaesthesia, and hospital stay. Most major health insurance plans cover skull base surgery. Please contact our clinic for a consultation and cost estimate.
