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What are the different types of meningiomas?

Learn about the types of meningiomas, including convexity, parasagittal and falx, skull base, sphenoid wing, intraventricular, spinal, multiple, atypical, anaplastic, microcystic, and secretory meningiomas, and the treatment options available by mariabutler
Estimated reading time: 3 min 15 sec
What are the different types of meningiomas? Photo by Jonathan Borba on Pexels

Meningiomas are tumors that form from the covering of the brain and spinal cord called the meninges. They are typically non-cancerous and grow slowly, although there are types that can grow rapidly and become cancerous.

Meningiomas can occur anywhere in the meninges, which is why there are different types of meningiomas. Some may not require treatment, while others may need immediate attention.

Types of meningiomas

There are several types of meningiomas that doctors classify based on their appearance and location:.

1. Convexity meningiomas

The most common type of meningioma, accounting for 20-30% of all cases, are convexity meningiomas. These tumors occur on the surface of the brain and can be large and slow-growing.

They can cause headaches, seizures, and affect a person’s personality and behavior. Treatment options include surgery, radiation, and observation, depending on the patient’s age and overall health.

2. Parasagittal and falx meningiomas

Parasagittal and falx meningiomas are tumors that occur in the area that separates the two sides of the brain. They can cause personality changes, seizures, and weakness on one side of the body.

They may require surgery or radiation therapy, depending on the size of the tumor and the patient’s overall health.

3. Skull base meningiomas

Skull base meningiomas are tumors that occur at the base of the skull, where the brain and spinal cord meet. They can cause vision and hearing loss, difficulty swallowing, and facial numbness.

Skull base meningiomas can be difficult to remove due to their location, and treatment options may include surgery, radiation, or a combination of both.

4. Sphenoid wing meningiomas

Sphenoid wing meningiomas are tumors that occur in the area behind the eyes and can cause visual changes, headaches, and facial numbness.

These tumors can be difficult to remove due to their location and may require a combination of surgery and radiation therapy.

5. Intraventricular meningiomas

Intraventricular meningiomas are tumors that grow within the ventricles of the brain. They can cause headaches, seizures, and altered mental status.

Treatment options may include surgery, radiation, and observation, depending on the size and location of the tumor.

Related Article What are the symptoms of meningiomas? What are the symptoms of meningiomas?

6. Spinal meningiomas

Spinal meningiomas are tumors that occur in the spinal cord or the covering around the spinal cord. These tumors can cause back pain, weakness in the legs or arms, and loss of bowel or bladder control.

Treatment options may include surgery, radiation, or observation, depending on the size and location of the tumor.

7. Multiple meningiomas

Some people may develop multiple meningiomas, which can occur in different locations within the meninges. This can be a result of a genetic condition called neurofibromatosis type 2 (NF2) or as a spontaneous occurrence.

Treatment options may vary depending on the size and location of the tumors and the overall health of the patient.

8. Atypical meningiomas

Atypical meningiomas are tumors that have a higher rate of growth and potential to spread compared to typical meningiomas.

They make up around 5-7% of all meningiomas and may require a more aggressive treatment plan, including surgery, radiation, and chemotherapy.

9. Anaplastic (malignant) meningiomas

Anaplastic meningiomas are the most aggressive and malignant form of meningiomas, making up around 1-3% of all cases. They may grow rapidly and spread to surrounding areas of the brain or spinal cord.

Treatment options may include surgery, radiation, and chemotherapy, and the prognosis for patients with anaplastic meningiomas is typically poor.

10. Microcystic and secretory meningiomas

Microcystic and secretory meningiomas are rare forms of meningiomas that have a high number of fluid-filled sacs or secrete hormones.

These tumors can cause hormonal imbalances or affect the brain’s function and may require a combination of surgery, radiation, and hormone therapy.

Conclusion

Meningiomas are tumors that can occur in various locations of the meninges, which is why there are different types of meningiomas.

Treatment options may vary depending on the size, location, and type of meningioma, as well as the overall health of the patient. Early detection and treatment are key to a better prognosis.

Disclaimer: This article serves as general information and should not be considered medical advice. Consult a healthcare professional for personalized guidance. Individual circumstances may vary.

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