Can Meningioma Recur? What Is the Risk of Recurrence?

Meningiomas are tumors that originate from the membrane tissues called the meninges, which surround the brain and spinal cord. Meningiomas, one of the most common types of brain tumors, are usually benign; however, in some cases, they may recur after treatment. Some of the most frequently asked questions by patients diagnosed with meningioma are “Can meningioma recur?”, “What is the risk of meningioma recurrence?”, “Can meningioma develop again after surgery?” and “How many years after treatment can meningioma recur?”

The risk of meningioma recurrence varies depending on the grade and location of the tumor, how much of the tumor was removed during surgery, and the patient’s general condition. Today, thanks to advanced surgical techniques and regular follow-up programs, meningioma recurrences can be detected at an early stage and brought under control.

What Is a Meningioma?

A meningioma is a tumor that develops from the protective membrane layers surrounding the brain and spinal cord. These tumors generally grow slowly and may remain without symptoms for many years.

Although many meningiomas are benign, some types may behave more aggressively. Therefore, regular follow-up after diagnosis is extremely important.

The most common symptoms in symptomatic meningiomas include:

• Headache

• Visual disturbances

• Loss of balance

• Seizures

• Memory problems

• Weakness in the arms or legs

• Hearing problems

Can Meningioma Recur?

Yes, meningiomas can recur after treatment. However, the risk of recurrence is not the same for every meningioma.

In some patients, the tumor is completely removed after surgery, and no recurrence occurs for many years. In other cases, tumor regrowth may be detected years later.

Therefore, regular MRI examinations after meningioma treatment are extremely important.

Prof. Dr. Ömür Günaldı states that the risk of recurrence in meningiomas varies depending on the biological characteristics of the tumor and the success of surgery.

What Is Meningioma Recurrence?

Recurrence means that a treated tumor reappears in the same area or in the surrounding region.

Meningioma recurrence can occur in two ways:

Recurrence in the Same Area

This is the most common situation. The tumor grows again in the area from which it was removed.

Growth From Residual Tumor Tissue

This may occur when small pieces of tumor tissue that were intentionally left behind during surgery for safety reasons grow over time.

Factors Affecting the Risk of Meningioma Recurrence

The risk of recurrence is different for each patient with meningioma.

Tumor Grade

The World Health Organization classifies meningiomas into three groups.

Grade 1 Meningioma

This is the most common type and is considered benign.

The risk of recurrence is low but not completely absent.

Grade 2 Meningioma

This is known as an atypical meningioma.

The risk of recurrence is higher than in Grade 1 meningiomas.

Grade 3 Meningioma

This is known as an anaplastic meningioma.

It is the group with the highest risk of recurrence.

Therefore, it requires more frequent follow-up.

Complete Removal of the Tumor During Surgery

Complete removal of the tumor during meningioma surgery is one of the most important factors in reducing the risk of recurrence.

However, some tumors are located close to critical nerve or vascular structures, making complete removal impossible.

In such cases, follow-up at regular intervals is necessary.

Location of the Tumor

Tumors located in certain areas, such as skull base meningiomas, may be more difficult to remove completely.

Therefore, tumor location is an important factor affecting the likelihood of recurrence.

How Many Years After Treatment Can Meningioma Recur?

The time to recurrence of meningiomas may vary from person to person.

Some patients may experience recurrence within a few years, while others may have no recurrence for 10–20 years.

Therefore, regular follow-up examinations should not be discontinued even if the surgery was successful.

Prof. Dr. Ömür Günaldı emphasizes that long-term follow-up after meningioma treatment is just as important as the treatment itself.

What Are the Symptoms When Meningioma Recurs?

Symptoms of recurrent meningioma are often similar to those experienced at the time of the initial diagnosis.

Common Symptoms

• Persistent headache

• Vision loss

• Double vision

• Balance problems

• Weakness in the arms or legs

• Seizures

• Memory problems

• Difficulty concentrating

If these symptoms occur, specialist evaluation should be sought without delay.

How Is Meningioma Recurrence Detected?

Imaging methods play an important role in the early detection of recurrent meningiomas.

Magnetic Resonance Imaging (MRI)

MRI is the most commonly used method for monitoring recurrence.

After surgery, MRI scans are performed at predetermined intervals to evaluate the area where the tumor was located.

Neurological Examination

The patient’s neurological functions are regularly evaluated.

Advanced Imaging Techniques

Additional imaging methods may be used in certain cases.

What Is Done If Meningioma Recurs?

When recurrence is detected, the treatment method is determined according to the characteristics of the tumor.

Repeat Surgery

A second surgical procedure may be considered in suitable patients.

Radiosurgery

Radiosurgery may be an effective option, particularly for small recurrences.

Radiotherapy

Radiotherapy may be used for recurrent or aggressive meningiomas.

Follow-Up

Close monitoring may be preferred for some small and slow-growing recurrences.

Can Meningioma Recurrence Be Prevented?

There is no definitive method that can completely prevent meningioma recurrence.

However, certain factors may help reduce the risk of recurrence:

Regular Check-Ups: Keeping up with scheduled MRI examinations is important for early intervention.

Following the Doctor’s Recommendations: Recommendations provided after treatment should be carefully followed.

Healthy Lifestyle: Maintaining overall health may contribute to the recovery process.

Completing Radiotherapy When Required: It is important to complete any recommended additional treatments.

Why Is Follow-Up After Meningioma Important?

Completing meningioma treatment does not mean that the patient no longer requires follow-up.

Regular imaging examinations should be performed, particularly during the first few years.

This allows a possible recurrence to be detected at an early stage and managed more easily.

Prof. Dr. Ömür Günaldı states that monitoring meningioma patients at regular intervals for many years is critically important for maintaining successful long-term outcomes.

Meningiomas are mostly benign tumors; however, in some cases, they may recur after treatment. The risk of recurrence varies depending on the grade and location of the tumor and the treatment performed. Today, thanks to advanced surgical techniques, radiosurgery applications, and regular follow-up programs, meningioma recurrences can be detected at an early stage and successfully managed. Therefore, it is extremely important not to neglect regular follow-up examinations after meningioma treatment. Detailed evaluations and personalized follow-up programs provided by Prof. Dr. Ömür Günaldı may make an important contribution to patients’ long-term health outcomes.