What Is Meningioma and How Is It Managed?

Written by Medicover Team and Medically Reviewed by Dr Krishna Haskar Dhanyamraju , Neurologists

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1. Causes 2. Find a Doctor 3. Diagnosis 4. Treatment 5. FAQs

Meningioma is the most common primary tumor arising from the meninges, the protective membranes surrounding the brain and spinal cord. Most meningiomas are slow-growing and benign (WHO Grade 1), but some may be atypical or malignant and behave more aggressively. Depending on their size and location, meningiomas can compress nearby brain tissue, nerves, or blood vessels, leading to neurological symptoms that require medical evaluation and treatment.

What Are the Types of Meningioma?

Meningiomas are classified by the World Health Organization (WHO) according to their growth pattern and likelihood of recurrence.

Grade 1 (Benign) Meningioma: The most common type, slow-growing with a low risk of recurrence after complete removal.
Grade 2 (Atypical) Meningioma: Grows more rapidly and has a higher chance of recurring after treatment.
Grade 3 (Anaplastic or Malignant) Meningioma: A rare, aggressive form that invades surrounding tissues and is more likely to recur.

What Are the Symptoms of Meningioma?

Symptoms vary depending on the tumor's size, location, and the structures it compresses.

Persistent or worsening headaches
Seizures
Vision loss or double vision
Hearing loss or ringing in the ears
Weakness or numbness of the face or limbs
Memory problems or difficulty concentrating
Personality or behavioral changes
Difficulty with balance or coordination

What Causes Meningioma?

The exact cause is not always known, but several genetic and environmental factors have been linked to the development of meningiomas.

Mutations in the NF2 gene and other genetic alterations
Previous radiation exposure to the head
Inherited disorders such as neurofibromatosis type 2
Hormonal influences, particularly in some women
Increasing age

When Should You See a Doctor for Meningioma?

You should consult a neurologist or neurosurgeon if you develop persistent neurological symptoms or if imaging suggests a brain tumor.

Seek medical evaluation if you experience:

Persistent or worsening headaches
New-onset seizures
Vision or hearing changes
Weakness, numbness, or balance problems
Memory loss or personality changes
Difficulty speaking or walking

Early diagnosis improves treatment planning and helps prevent permanent neurological complications.

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How Is Meningioma Diagnosed?

Diagnosis combines neurological assessment with imaging studies and confirmation through tissue examination when surgery is performed.

Detailed neurological examination
MRI of the brain with contrast
CT scan to evaluate bone involvement or calcification
Biopsy and histopathological examination when indicated
Molecular testing for tumor grading in selected cases

How Is Meningioma Treated?

Treatment depends on the tumor's size, location, growth rate, symptoms, and WHO grade.

Active surveillance with periodic MRI scans for small, asymptomatic tumors
Surgical removal whenever safely possible
Radiation therapy, including stereotactic radiosurgery, for residual, recurrent, or inoperable tumors
Chemotherapy or targeted therapies for selected aggressive or recurrent tumors
Supportive medications, including corticosteroids and antiepileptic drugs when required

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What Are the Risk Factors for Meningioma?

Several factors have been associated with an increased risk of developing meningiomas.

Older age
Female sex
Previous cranial radiation exposure
Neurofibromatosis type 2 (NF2)
Family history of meningioma

What Complications Can Meningioma Cause?

Complications depend on the tumor's location, size, and response to treatment.

Persistent neurological deficits
Seizures
Vision or hearing loss
Cognitive impairment
Tumor recurrence
Complications related to surgery or radiation therapy

Can Meningioma Be Prevented?

There is no proven way to prevent most meningiomas. Avoiding unnecessary exposure to ionizing radiation, seeking genetic counseling for individuals with neurofibromatosis type 2 or a strong family history, and attending regular follow-up imaging when recommended may help with early detection and management. Maintaining a healthy lifestyle supports overall well-being but has not been shown to specifically prevent meningiomas.

What Is the Prognosis for Meningioma?

The prognosis depends on the tumor grade, location, extent of surgical removal, and response to treatment. Most Grade 1 meningiomas have an excellent prognosis following complete surgical removal. Grade 2 and Grade 3 tumors have a higher risk of recurrence and often require additional treatments such as radiation therapy. Regular long-term follow-up with MRI scans is essential to detect recurrence early and optimize long-term neurological outcomes.

Frequently Asked Questions

1. What are the symptoms of meningioma?

Symptoms include headaches, vision changes, seizures, and neurological deficits, depending on the tumor's location and size.

2. What causes meningioma?

Meningiomas arise from the meninges, the protective layers around the brain and spinal cord. Causes include genetic mutations, radiation exposure, and hormonal factors.

3. How is meningioma treated?

Treatment options include surgical removal of the tumor, radiation therapy, and in some cases, observation if the tumor is small and not causing symptoms.