
KEY TAKEAWAYS
- Acoustic neuroma (vestibular schwannoma) is a benign tumor of the vestibular nerve presenting with progressive one-sided hearing loss, tinnitus and sometimes vertigo affecting adults between 40 and 60 years most commonly.
- Three management strategies exist: observation (small tumors), stereotactic radiosurgery (Gamma Knife tumors under 3 cm) and microsurgical resection (large tumors or patient preference).
- The three surgical approaches retrosigmoid, translabyrinthine and middle fossa offer different trade-offs between hearing preservation and completeness of resection.
- Facial nerve preservation avoiding permanent facial palsy is the primary surgical goal alongside tumor removal. Intraoperative facial nerve EMG monitoring is mandatory.
- Hearing preservation is possible with retrosigmoid and middle fossa approaches for small to medium tumors translabyrinthine sacrifices hearing but provides the best facial nerve exposure.
- Acoustic neuroma surgery cost in Pune ranges from INR 5,00,000 to INR 8,00,000 for microsurgical resection Gamma Knife radiosurgery costs INR 2,50,000 to INR 4,50,000.
- Dr. Sarang Gotecha performs acoustic neuroma surgery for patients across Pune, Baner, Wakad, Thergaon and PCMC using skull base microsurgical techniques with mandatory facial nerve monitoring.
Acoustic neuroma is the most common cerebellopontine angle (CPA) tumor and one of the most surgically nuanced skull base lesions. It grows from the vestibular branch of the eighth cranial nerve in the internal auditory canal a bony channel housing both the hearing nerve (cochlear) and the vestibular nerve, and immediately adjacent to the facial nerve (seventh cranial nerve). Surgery near this cluster of critical structures demands the highest standard of microsurgical skill and intraoperative monitoring.
For patients in Pune who have received an acoustic neuroma diagnosis, the treatment decision is multi-dimensional: how large is the tumor, is any hearing worth preserving, what is the risk to facial nerve function, and what is the preference between observation, radiosurgery and surgery? This guide provides the framework to navigate these questions.
QUICK FACTS
Most Common Presentation: Progressive one-sided sensorineural hearing loss
Radiosurgery Indication: Tumor under 3 cm Gamma Knife or CyberKnife
Surgery Indication: Tumors over 3 cm, brainstem compression, patient preference
Facial Nerve Preservation Rate: Over 90% anatomical preservation in experienced hands
Hearing Preservation (Retrosigmoid): 30 to 50% for small tumors with useful hearing
Surgery Cost Pune 2026: INR 5,00,000 to INR 8,00,000
Acoustic Neuroma Statistics in India 2025-2026
| Metric | Data Point | Source |
| Incidence of acoustic neuroma in India | ~1 to 2 per 100,000 per year (Industry estimate) | Industry estimate |
| Age at diagnosis (peak) | 40 to 60 years | Published literature |
| NF2-associated bilateral acoustic neuromas | ~5% | Published literature |
| Gross total resection rate (experienced centres) | 80 to 95% | Published literature |
| Facial nerve anatomical preservation | Over 90% in experienced skull base surgeons | Published literature |
| Hearing preservation rate (small tumors, retrosigmoid) | 30 to 50% | Published literature |
| Surgery cost in Pune | 5,00,000 to 8,00,000 INR | Industry estimate |
How Acoustic Neuroma Presents: What Pune Patients Describe
Acoustic neuroma develops insidiously. The most common story in Pune neurosurgery OPDs is a patient who noticed their hearing was worse in one ear over 12 to 24 months initially attributed to wax, then to ‘natural ageing’ by a GP who eventually gets an audiogram showing unilateral sensorineural hearing loss and is referred for MRI.
Tinnitus a persistent ringing or rushing sound in one ear is present in approximately 70% of acoustic neuroma patients. True rotational vertigo (room spinning) is less common than imbalance or a vague sense of unsteadiness. As tumors enlarge into the CPA, they may compress the trigeminal nerve (causing facial numbness), the brainstem (causing gait disturbance and nystagmus) and, eventually, the fourth ventricle (causing obstructive hydrocephalus).
The combination of unilateral sensorineural hearing loss plus tinnitus in an adult under 60 should always prompt MRI of the posterior fossa with gadolinium. A normal audiogram does not exclude acoustic neuroma in a patient with unilateral tinnitus a small intracanalicular tumor may not yet be causing measurable hearing threshold change.
The Three Treatment Options: Observation, Radiosurgery and Surgery
Option 1: Observation (Serial MRI)
Many acoustic neuromas grow slowly or not at all. The annual growth rate averages 1 to 2 mm per year, and approximately 40 to 50% of tumors show no growth on serial imaging. For small intracanalicular tumors (under 1.5 cm) in older patients or those with significant medical comorbidities, observation with MRI every 6 to 12 months is appropriate initial management. If growth is documented or symptoms worsen, treatment is reconsidered.
Option 2: Stereotactic Radiosurgery (Gamma Knife)
Gamma Knife radiosurgery delivers highly focused radiation to the acoustic neuroma in a single treatment session, without any incision. It does not remove the tumor it arrests growth in 90 to 95% of cases over 10 years. For tumors under 3 cm with no significant brainstem compression, Gamma Knife is an excellent alternative to surgery: same day procedure, no general anaesthesia, no hospitalisation, facial nerve preservation rate over 95% and hearing preservation rate of 60 to 70%.
Limitations: Gamma Knife does not immediately reduce tumor size treated tumors may transiently swell in the 6 to 18 months post-treatment before stabilising or shrinking. It cannot be repeated at the same dose to the same site if the tumor grows. For large tumors causing brainstem compression or hydrocephalus, surgery remains necessary.
Option 3: Microsurgical Resection
Surgery is indicated for: tumors over 3 cm, tumors causing brainstem compression or hydrocephalus, young patients (under 50) with significant hearing and a growing tumor, patients preferring definitive treatment, and Gamma Knife failures. Microsurgical resection provides gross total removal in 80 to 95% of cases at experienced centres, with permanent cure of the tumor growth risk.
The Three Surgical Approaches: Trade-offs Every Patient Should Understand
| Approach | Access | Hearing Preserved? | Facial Nerve Exposure | Best For |
| Retrosigmoid (posterior) | Behind the sigmoid sinus | Yes if cochlear nerve spared | Good | Medium-large tumors; hearing preservation attempt |
| Translabyrinthine | Through the mastoid and labyrinth | No hearing sacrificed | Excellent best exposure | Large tumors; non-functional hearing; best FN access |
| Middle fossa (above ear) | Through temporal bone above ear | Yes best hearing preservation | Limited small tumor only | Small intracanalicular tumors; best hearing chance |
The approach selection is made by the neurosurgeon and skull base ENT surgeon together based on: tumor size, preoperative hearing level (assessed by pure tone audiogram and speech discrimination score), tumor anatomy on MRI and the surgical team’s experience. Patients should ask specifically: ‘Which approach will you use and why, given my tumor size and hearing status?’
Facial Nerve Preservation: The Central Surgical Goal
The facial nerve (seventh cranial nerve) runs immediately anterior to the acoustic neuroma in the internal auditory canal and CPA. It controls all voluntary facial movements eye closure, smile, forehead wrinkle. Permanent facial palsy following acoustic neuroma surgery is the complication that most significantly impacts quality of life. An experienced skull base surgeon’s primary commitment is preserving facial nerve anatomical continuity throughout the operation.
Intraoperative facial nerve EMG monitoring with electrodes in the facial musculature measuring real-time nerve responses is mandatory for all acoustic neuroma surgery. When the stimulating probe contacts or approaches the nerve, a characteristic EMG discharge alerts the surgical team. Changes in nerve response patterns during dissection guide the surgeon’s technique. The facial nerve is identifiable before it is touched using both anatomical landmarks and stimulator-guided mapping.
Anatomical preservation rates exceed 90% at experienced skull base centres. However, anatomical preservation does not guarantee immediate normal facial function some degree of post-operative facial weakness (neuropraxia) from traction or manipulation occurs in 20 to 40% of patients. The vast majority recover to House-Brackmann Grade I or II (normal or near-normal) function within 3 to 12 months as the nerve recovers.
Post-Operative Recovery After Acoustic Neuroma Surgery in Pune
| Recovery Milestone | Timeline |
| ICU stay post-surgery | 1 to 2 days |
| Total hospital stay | 5 to 8 days |
| Balance rehabilitation starts | Day 2 to 3 (vestibular physiotherapy) |
| Return to desk work | 6 to 10 weeks |
| Driving | 8 to 12 weeks (balance assessment required) |
| Facial nerve recovery (if initial weakness) | 3 to 12 months progressive improvement |
| Audiological assessment | 6 weeks post-surgery |
| First post-op MRI | 6 to 8 weeks |
| Long-term surveillance MRI | Annual for 5 years |
Acoustic Neuroma Treatment Cost in Pune 2026
| Treatment | Cost Range (INR) | Hospital Stay | Key Notes |
| Observation (serial MRI) | 4,000 to 8,000 per MRI | Day procedure | 3 to 4 MRIs over first 2 years |
| Gamma Knife radiosurgery | 2,50,000 to 4,50,000 | Same day | Not available at all Pune centres |
| Microsurgical resection retrosigmoid | 5,00,000 to 8,00,000 | 5 to 8 days | Hearing preservation possible |
| Microsurgical resection translabyrinthine | 5,00,000 to 8,00,000 | 5 to 8 days | Best FN exposure; hearing sacrificed |
| Microsurgical resection middle fossa | 5,50,000 to 9,00,000 | 5 to 8 days | Small tumors; best hearing chance |
| Facial nerve repair (if needed) | 2,00,000 to 4,00,000 | 3 to 5 days | Nerve graft or anastomosis |
Acoustic Neuroma Care in Pune and PCMC
Dr. Sarang Gotecha performs acoustic neuroma surgery using skull base microsurgical techniques with mandatory intraoperative facial nerve EMG monitoring. His training at National Neuroscience Institute Singapore a high-volume skull base centre provides direct experience with the retrosigmoid and translabyrinthine approaches. For patients from Pune, Baner, Wakad, Thergaon and PCMC, expert acoustic neuroma surgery is available locally without travelling to Mumbai.
For acoustic neuroma diagnosis review, treatment option discussion and surgical planning, book at drsaranggotecha.com.
Frequently Asked Questions
Q: What is acoustic neuroma and how is it treated in Pune?
A: Acoustic neuroma (vestibular schwannoma) is a benign tumor of the vestibular nerve in the internal auditory canal and cerebellopontine angle. It presents with progressive one-sided hearing loss, tinnitus and sometimes vertigo. Treatment options include observation with serial MRI (small, slow-growing tumors), Gamma Knife radiosurgery (tumors under 3 cm) and microsurgical resection (large tumors, brainstem compression or patient preference). All three options are discussed at Dr. Sarang Gotecha’s consultation.
Q: Can hearing be preserved after acoustic neuroma surgery in Pune?
A: Hearing preservation is possible with retrosigmoid and middle fossa surgical approaches for small to medium tumors in patients with useful preoperative hearing. Preservation rates are 30 to 50% for retrosigmoid and 50 to 60% for middle fossa. Translabyrinthine approach sacrifices hearing but provides excellent facial nerve exposure. Gamma Knife radiosurgery preserves hearing in 60 to 70% of cases at 10 years. The approach that offers the best hearing preservation for your tumor size should be discussed explicitly at pre-operative consultation.
Q: What is the risk to facial nerve from acoustic neuroma surgery?
A: With intraoperative facial nerve EMG monitoring, anatomical preservation of the facial nerve exceeds 90% at experienced skull base centres. Some degree of transient post-operative facial weakness (neuropraxia) occurs in 20 to 40% of patients due to traction and manipulation, but recovers to House-Brackmann Grade I or II in the majority within 3 to 12 months. Permanent severe facial palsy is rare in experienced hands under 5%. Always ask your surgeon about their specific facial nerve outcomes for tumors of your size.
Q: What is the cost of acoustic neuroma surgery in Pune in 2026?
A: Microsurgical acoustic neuroma resection in Pune costs approximately INR 5,00,000 to INR 8,00,000 all-inclusive depending on the surgical approach, tumor size and hospital tier. Gamma Knife radiosurgery costs INR 2,50,000 to INR 4,50,000 as a day procedure. Observation requires serial MRI at INR 4,000 to INR 8,000 per scan over 2 to 5 years.
Q: Is Gamma Knife or surgery better for acoustic neuroma?
A: Neither is universally better the right choice depends on tumor size, hearing status and patient preference. Gamma Knife is preferred for tumors under 3 cm, has excellent tumor control rates (90 to 95% at 10 years), better hearing preservation (60 to 70%) and no surgical risk. Surgery is preferred for tumors over 3 cm, any brainstem compression, young patients wanting definitive treatment and Gamma Knife failures. The decision should be made after a multidisciplinary discussion including the neurosurgeon and radiation oncologist.
Q: Is acoustic neuroma surgery available in Baner and PCMC in Pune?
A: Yes. Acoustic neuroma microsurgical resection using skull base techniques with mandatory facial nerve monitoring is available at hospitals in the Baner-Wakad corridor where Dr. Sarang Gotecha operates. Patients from PCMC, Thergaon, Chinchwad and western Pune can access this expertise without travelling to Mumbai. Book your Consultation today.
Acoustic neuroma treatment in Pune in 2026 covers the full spectrum from observation through radiosurgery to microsurgical resection. The right choice depends on tumor size, hearing status and patient priorities. Facial nerve preservation and hearing preservation are the outcomes that most affect quality of life they should be explicitly discussed at every pre-treatment consultation.
For acoustic neuroma diagnosis review, treatment planning and surgery in Pune and PCMC, book with Dr. Sarang Gotecha.
Dr. Sarang Gotecha
Dr. Sarang Gotecha is a leading brain & spine surgeon in Pune, offering advanced care for complex neurological and spinal conditions. With strong academic credentials (MBBS, MS, MCh Neurosurgery) and years of surgical experience, he is committed to delivering precise, safe, and patient-focused treatments.
- Expert in brain tumor, spine & neuroendoscopic surgeries
- Specialized in minimally invasive & skull base surgeries
- Follows an ethical and patient-centric approach
- Available at clinics in Baner, Wakad, and Thergaon (Pune)

