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Hereditary Meningioma in Neurofibromatosis Type 2: Multifocal Tumor Management

Multidisciplinary approach to multiple meningiomas in NF2-associated tumor predisposition syndrome with watchful waiting, surgical resection and radiosurgery options

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Onkoloji department. Book Appointment →

What is Hereditary Meningioma in Neurofibromatosis Type 2: Multifocal Tumor Management?

Neurofibromatosis type 2 is autosomal dominant tumor predisposition with germline NF2 gene mutations affecting approximately 1 in 33,000 individuals.

Hallmark manifestation is bilateral vestibular schwannomas presenting in young adulthood with hearing loss, tinnitus and balance disturbance.

Multiple meningiomas occur in approximately 50-60% of NF2 patients with characteristic en plaque morphology and atypical histology.

Other tumor types include ependymomas of brain and spinal cord, peripheral schwannomas, juvenile cataracts and cutaneous schwannomas.

Genetic testing confirms diagnosis and enables family screening with Manchester criteria or NIH criteria supporting clinical diagnosis.

Symptoms

Bilateral hearing loss progressing over years from vestibular schwannoma growth represents most common presenting symptom.
Tinnitus and balance disturbance accompany vestibular dysfunction with disequilibrium and gait instability.
Headache, focal neurological deficits or seizures may occur from meningioma mass effect or location-specific symptoms.
Spinal cord compression from intradural intramedullary or extramedullary tumors causes progressive myelopathy.
Visual symptoms from juvenile posterior subcapsular cataracts, optic nerve sheath meningioma or retinal hamartoma may occur.

Risk Factors

Family history of NF2 with autosomal dominant inheritance and 50% transmission risk to offspring.
Approximately 50% of NF2 cases represent de novo germline mutations without prior family history.
Mosaic NF2 with somatic mutation may present with unilateral or asymmetric disease and lower transmission risk.
Younger age at diagnosis correlates with more severe phenotype and accelerated tumor progression.
Specific NF2 mutation types including truncating mutations associate with severe phenotype and earlier mortality.

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Bilateral vestibular schwannomas, multiple meningiomas or family history of NF2 warrants genetic evaluation.
  • Progressive hearing loss with audiometric decline despite tumor stability represents indication for intervention discussion.
  • Meningioma growth on serial imaging or new symptomatic mass effect warrants neurosurgical evaluation.
  • Symptomatic spinal cord tumor with myelopathy or progressive neurological deficit requires surgical assessment.
  • Multidisciplinary care including neurosurgery, neuro-oncology, otolaryngology, ophthalmology and genetic counseling optimizes outcomes.

Treatment Methods

01
Watchful waiting with serial imaging surveillance applies to small asymptomatic stable tumors.
02
Surgical resection considered for progressive symptomatic tumors balancing tumor control against neurological morbidity.
03
Stereotactic radiosurgery for selected vestibular schwannomas and meningiomas offers non-invasive control option.
04
Bevacizumab anti-VEGF therapy can stabilize or improve hearing in selected progressive vestibular schwannoma cases.
05
Auditory rehabilitation including hearing aids, cochlear implants when feasible, auditory brainstem implants in select cases supports communication and quality of life as part of comprehensive lifelong NF2 management.

Which Department to Visit?

You can visit our Onkoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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