About Meningioma

Overview

A meningioma is a type of tumor that develops in the meninges, which are the three membrane layers surrounding the brain and spinal cord. It is the most common type of primary brain tumor. Meningiomas typically grow on the outermost layer of the meninges called the dura mater. These tumors can occur when the cells lining the dura mater, known as meningeal cells, undergo genetic mutations that affect their function and cause them to transform into tumor cells. While the exact causes of meningiomas are not fully understood, exposure to radiation, especially during childhood, is a known environmental risk factor. Additionally, individuals with a genetic disorder called neurofibromatosis type 2 have an increased likelihood of developing meningiomas. Treatment for meningiomas may involve surgical removal of the tumor or monitoring the tumor's growth and overall health.

Causes and Risk Factors

The exact causes of meningiomas are still unknown. However, there are several risk factors associated with this condition.

Non-modifiable risk factors are factors that cannot be changed or controlled. These include:

• Genetics: A genetic disorder known as neurofibromatosis type 2 may increase the risk of a meningioma.
• Increasing age
• Gender: Females have a higher incidence rate of meningiomas.

Modifiable risk factors are factors that can be influenced or changed. These include:

• Obesity
• High blood pressure
• Abnormal levels of cholesterol and other lipids in the blood

It's important to note that while these factors may be associated with an increased risk, they do not guarantee the development of meningiomas. Consult with your healthcare professional for personalized advice on managing these risk factors.

Symptoms

The most common early symptoms of meningiomas include:

• Hearing loss or ringing in the ears
• Dizziness
• Headaches

As meningiomas progresses or reaches a higher severity, other common symptoms that may occur include:

• Seizures
• Personality or memory changes
• Nausea or vomiting
• Blurry vision or other vision changes
• Muscle weakness
• Loss of feeling or numbness in the face
• Confusion

It's important to note that some people with meningiomas may not experience any symptoms, so doctors rely on brain and spine scans for diagnosis. If you have any concerns or experience any of these symptoms, it's best to consult with a healthcare professional for an accurate evaluation and appropriate management.

Diagnosis

To diagnose this condition, doctors commonly perform the following examinations, tests, and procedures:

• Medical history: Doctors will ask about your symptoms, medical history, and any risk factors.
• Physical examination: The healthcare provider will look for physical signs of a medical problem, such as pain, swelling, or masses in the body.
• Imaging tests: MRI and CT scans provide detailed images of the brain and surrounding areas to identify tumors or other issues.
• Neurological examination: This assesses cognitive and physical function.
• Biopsy or surgical removal: This is necessary to confirm the diagnosis and further analyze the tumor.

To determine the stage or severity of a meningioma, additional examinations, tests, and procedures may include:

• Angiography: An imaging test that provides a detailed image of blood vessels.
• Hearing and vision tests: These assess any potential impact on sensory functions.
• Genetic testing: Laboratory tests that help identify changes in genes, chromosomes, or proteins.
• Follow-up exams: Regular monitoring to track any changes in symptoms or tumor growth.

Remember, each case is unique. Consult with your healthcare professional for personalized advice.

Treatment Options

The goals of treatment are to:

• Obtain tissue for tumor type determination
• Remove as much tumor as possible without causing more symptoms for the person.
• Delay tumor recurrence

Treatment options for meningiomas include:

• Surgery: Surgical resection is the preferred treatment for meningioma, aiming to achieve maximum removal of the tumor while maintaining a high quality of life.
• Radiation therapy: After surgery, radiation therapy is often used to delay tumor recurrence. Stereotactic radiotherapy is an optional method for meningioma after surgical treatment.
• Chemotherapy: Chemotherapy may be recommended as a treatment option for meningioma. However, its role after radiation therapy is unclear.
• Clinical trials: Participation in clinical trials with new chemotherapy, targeted therapy, or immunotherapy drugs can be considered as a treatment option.

The specific recommendations for medication types, therapies, and therapeutic procedures depend on factors such as the patient's age, remaining tumor after surgery, tumor type, and tumor location. It is important to consult with a healthcare professional to determine the most appropriate treatment plan.

Medication dosing may be affected by many factors. Check with your health care professional about dosing for your individual situation. Other side effects can occur. Check with your health care professional or read the information provided with your medication for additional side effect information.