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What is Ependymoma? Symptoms, Causes, & Treatment
What is Ependymoma? Symptoms, Causes, & Treatment

Health Library

What is Ependymoma? Symptoms, Causes, & Treatment

October 10, 2025


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Ependymoma is a type of brain or spinal cord tumor that develops from cells called ependymal cells, which line the fluid-filled spaces in your central nervous system. While the name might sound intimidating, understanding this condition can help you feel more prepared and informed about what it means and how it's managed.

These tumors can occur at any age, though they're most commonly diagnosed in young children and adults in their 30s and 40s. The good news is that many ependymomas grow slowly, and with proper medical care, many people go on to live full, active lives.

What is Ependymoma?

Ependymoma is a tumor that grows from ependymal cells, which are special cells that line the ventricles in your brain and the central canal of your spinal cord. Think of these cells as the inner lining of the spaces where cerebrospinal fluid flows through your nervous system.

These tumors can develop anywhere along your central nervous system, but they most commonly appear in the brain's ventricles or along the spinal cord. The location where the tumor grows often determines what symptoms you might experience and how doctors approach treatment.

Ependymomas are classified as primary brain tumors, meaning they start in the brain or spinal cord rather than spreading from somewhere else in your body. They can be either benign (non-cancerous) or malignant (cancerous), with most falling somewhere in between these categories.

What are the Types of Ependymoma?

Doctors classify ependymomas into several types based on where they occur and how they look under a microscope. Understanding these different types can help you better grasp your specific situation.

The main types include:

  • Subependymomas: These are the slowest-growing type and are usually benign. They often don't cause symptoms and may be discovered accidentally during brain scans for other reasons.
  • Myxopapillary ependymomas: These typically occur in the lower part of the spinal cord and are usually grade I tumors, meaning they grow very slowly.
  • Classic ependymomas: These are grade II tumors that can occur in the brain or spinal cord and grow at a moderate pace.
  • Anaplastic ependymomas: These are grade III tumors that grow more quickly and are more likely to recur after treatment.

Your medical team will determine which type you have through careful examination of tissue samples. This information helps them create the most appropriate treatment plan for your specific situation.

What are the Symptoms of Ependymoma?

The symptoms of ependymoma depend largely on where the tumor is located and how large it has grown. Because these tumors can press on surrounding brain or spinal cord tissue, they often cause problems related to the specific area they're affecting.

If you have a brain ependymoma, you might experience:

  • Persistent headaches that may worsen over time
  • Nausea and vomiting, especially in the morning
  • Balance problems or difficulty walking
  • Vision changes or double vision
  • Seizures
  • Memory problems or changes in thinking
  • Personality changes or mood swings
  • Weakness in arms or legs

For spinal cord ependymomas, symptoms often include:

  • Back pain that doesn't improve with rest
  • Numbness or tingling in arms or legs
  • Weakness in your limbs
  • Difficulty with bladder or bowel control
  • Problems with coordination

It's important to remember that these symptoms can develop gradually over weeks or months. Many people initially dismiss them as stress or fatigue, which is completely understandable. If you're experiencing persistent symptoms, especially headaches combined with other neurological signs, it's worth discussing with your doctor.

What Causes Ependymoma?

The exact cause of ependymoma isn't fully understood, which can feel frustrating when you're looking for answers. What we do know is that these tumors develop when ependymal cells begin to grow and divide uncontrollably, but the trigger for this process remains unclear in most cases.

Unlike some other cancers, ependymomas don't appear to be caused by lifestyle factors like smoking or diet. They're not contagious, and in the vast majority of cases, they're not inherited from your parents.

However, there are a few rare genetic conditions that can increase the risk:

  • Neurofibromatosis type 2 (NF2): This rare genetic disorder can increase the likelihood of developing certain types of brain tumors, including ependymomas.
  • Previous radiation therapy: In very rare cases, people who received radiation treatment to the head or spine for another condition may have a slightly increased risk.

For most people diagnosed with ependymoma, there's no identifiable cause or risk factor. This isn't anyone's fault, and there likely wasn't anything you could have done to prevent it. Focusing on moving forward with treatment and care is usually the most helpful approach.

When to See a Doctor for Ependymoma Symptoms?

You should contact your doctor if you're experiencing persistent neurological symptoms, especially if they're getting worse over time. While these symptoms can have many causes, it's always better to have them evaluated sooner rather than later.

Seek medical attention promptly if you experience:

  • Severe headaches that are different from any you've had before
  • Headaches accompanied by vomiting, especially in the morning
  • Sudden vision changes or double vision
  • New seizures or changes in existing seizure patterns
  • Significant balance problems or difficulty walking
  • Sudden weakness in your arms or legs
  • Loss of bladder or bowel control

Call emergency services immediately if you experience a sudden, severe headache that feels like "the worst headache of your life," sudden loss of consciousness, or severe neurological symptoms that come on rapidly.

Remember, many conditions can cause these symptoms, and most are not brain tumors. However, early evaluation allows for prompt treatment if something serious is found, and it can provide peace of mind if the cause is something less concerning.

What are the Risk Factors for Ependymoma?

Most ependymomas occur without any clear risk factors, which means they can affect anyone. However, there are a few patterns that doctors have observed that might be helpful to understand.

Age plays a role, with two peak periods when ependymomas are most commonly diagnosed:

  • Young children, particularly those under 5 years old
  • Adults in their 30s and 40s

The rare genetic conditions that can increase risk include:

  • Neurofibromatosis type 2: This affects fewer than 1 in 25,000 people but does increase the risk of certain brain tumors
  • Previous high-dose radiation to the head or spine: This is an extremely rare risk factor that might apply to people who received radiation therapy for other cancers

It's crucial to understand that having a risk factor doesn't mean you will develop ependymoma. Many people with risk factors never develop tumors, while most people diagnosed with ependymoma have no known risk factors at all.

What are the Possible Complications of Ependymoma?

While thinking about complications can feel overwhelming, understanding potential challenges helps you and your medical team prepare and respond effectively. Many complications can be managed or prevented with proper care.

Complications from the tumor itself might include:

  • Increased pressure in the brain if the tumor blocks cerebrospinal fluid flow
  • Neurological problems related to the tumor's location, such as movement difficulties or sensory changes
  • Seizures, which can often be controlled with medication
  • Cognitive changes, particularly with tumors in certain brain regions

Treatment-related complications can occur but are carefully managed:

  • Surgical risks, though these are minimized with modern techniques and experienced neurosurgeons
  • Radiation therapy effects, which your team will monitor and help you manage
  • Chemotherapy side effects, if this treatment is recommended

The possibility of tumor recurrence is another concern, which is why regular follow-up care is so important. Your medical team will create a monitoring schedule that's right for your specific situation.

Remember that your healthcare team is experienced in preventing and managing these potential complications. Open communication about any concerns or symptoms you experience helps them provide the best possible care.

How is Ependymoma Diagnosed?

Diagnosing ependymoma involves several steps, and your doctor will guide you through each one. The process typically starts with a detailed discussion of your symptoms and a physical examination, including neurological tests to check your reflexes, balance, and coordination.

Imaging studies are the next crucial step:

  • MRI scan: This is the most important test for diagnosing ependymoma. It provides detailed pictures of your brain or spinal cord and can show the tumor's size, location, and characteristics.
  • CT scan: Sometimes used in addition to MRI, especially in emergency situations or if MRI isn't available.
  • Lumbar puncture: Occasionally recommended to check cerebrospinal fluid for cancer cells, though this isn't always necessary.

The definitive diagnosis requires a tissue sample, which means:

  • Biopsy or surgical removal: A neurosurgeon will obtain tissue for examination under a microscope. Often, this happens during surgery to remove as much of the tumor as possible.
  • Pathological examination: A pathologist will examine the tissue to confirm the diagnosis and determine the specific type and grade of ependymoma.

Your medical team might also recommend additional tests to check if the tumor has spread, though ependymomas rarely spread to other parts of the body. The entire diagnostic process helps your doctors create the most effective treatment plan for your specific situation.

What is the Treatment for Ependymoma?

Treatment for ependymoma typically involves a team approach, with neurosurgeons, oncologists, and other specialists working together. The main goal is usually to remove as much of the tumor as possible while preserving your neurological function.

Surgery is almost always the first treatment:

  • Complete surgical removal: When possible, surgeons aim to remove the entire tumor. This often provides the best long-term outcomes.
  • Partial removal: If the tumor is in a location where complete removal might cause significant neurological damage, surgeons remove as much as safely possible.
  • Biopsy only: In rare cases where surgery is too risky, a small sample might be taken for diagnosis.

Radiation therapy often follows surgery:

  • External beam radiation: This precisely targets any remaining tumor cells while minimizing damage to healthy tissue.
  • Proton therapy: A specialized form of radiation that may be recommended in certain situations, particularly for children.

Chemotherapy is sometimes used:

  • More commonly recommended for children than adults
  • May be considered if the tumor returns after initial treatment
  • Used in combination with other treatments rather than alone

Your treatment plan will be tailored to your specific situation, considering factors like the tumor's location, size, grade, your age, and overall health. Your medical team will explain each recommended treatment and help you understand what to expect.

How to Manage Symptoms at Home During Treatment?

Managing symptoms at home is an important part of your overall care plan. While medical treatment addresses the tumor itself, there are many things you can do to feel more comfortable and support your recovery.

For headache management:

  • Take prescribed medications exactly as directed
  • Keep a cool, dark, quiet environment when headaches occur
  • Use relaxation techniques like deep breathing or gentle meditation
  • Stay hydrated, but follow any fluid restrictions your doctor has given you

To support your overall well-being:

  • Get adequate rest, but try to maintain some daily activity as tolerated
  • Eat nutritious foods to support your body during treatment
  • Ask for help with daily tasks when you need it
  • Stay connected with friends and family for emotional support

Safety considerations are important:

  • Avoid driving if you've had seizures or significant neurological symptoms
  • Remove tripping hazards from your home if you have balance issues
  • Keep important phone numbers easily accessible
  • Know when to contact your medical team with concerns

Remember that symptom management is highly individual. What works for one person might not work for another, so work closely with your healthcare team to find the best approaches for your situation.

How Should You Prepare for Your Doctor Appointment?

Preparing for your medical appointments can help you get the most out of your time with your healthcare team. Being organized and prepared helps ensure that all your questions are answered and important information is communicated.

Before your appointment, gather important information:

  • Write down all your symptoms, including when they started and how they've changed
  • List all medications you're taking, including over-the-counter drugs and supplements
  • Bring copies of any previous test results or imaging studies
  • Prepare a list of questions you want to ask

Consider bringing a support person:

  • A family member or friend can help you remember information discussed
  • They can provide emotional support during difficult conversations
  • They might think of questions you haven't considered
  • They can help take notes during the appointment

Questions you might want to ask include:

  • What type and grade of ependymoma do I have?
  • What are my treatment options?
  • What are the potential side effects of each treatment?
  • How will treatment affect my daily life?
  • What follow-up care will I need?
  • Are there clinical trials I should consider?

Don't hesitate to ask for clarification if you don't understand something. Your medical team wants you to be well-informed about your condition and treatment options.

What's the Key Takeaway About Ependymoma?

The most important thing to remember about ependymoma is that while receiving this diagnosis can feel overwhelming, many people with this condition go on to live full, meaningful lives. Modern medical care has significantly improved outcomes for people with ependymoma.

Treatment success often depends on factors like the tumor's location, size, and grade, as well as how completely it can be surgically removed. Many ependymomas, particularly the slower-growing types, respond well to treatment.

Your medical team has extensive experience treating ependymoma and will work with you to create the best possible treatment plan. Don't hesitate to ask questions, seek second opinions if desired, and lean on your support network during this journey.

Remember that everyone's experience with ependymoma is unique. While it's natural to search for information online, your specific situation and prognosis can only be accurately assessed by your medical team who knows all the details of your case.

Frequently asked questions about Ependymoma

Not all ependymomas are cancerous in the traditional sense. Some types, like subependymomas, are considered benign and grow very slowly. However, even benign brain tumors can cause problems if they grow large enough to press on surrounding tissue. Your doctor will explain the specific characteristics of your tumor and what this means for your treatment and outlook.

Ependymomas rarely spread outside the central nervous system to other organs in your body. When they do spread, it's usually within the cerebrospinal fluid to other parts of the brain or spinal cord. This is much less common than with many other types of cancer, which is generally good news for treatment planning.

Most people don't need ongoing active treatment after their initial therapy is complete. However, you will need regular follow-up appointments and imaging studies to monitor for any signs of tumor recurrence. The frequency of these follow-ups typically decreases over time if everything remains stable.

Many children treated for ependymoma go on to live normal, active lives. Treatment approaches for children often focus on minimizing long-term effects while effectively treating the tumor. Pediatric oncology teams include specialists who understand the unique needs of growing children and work to preserve normal development whenever possible.

It's completely normal to worry about symptoms, especially early in your follow-up period. Keep a record of any new or concerning symptoms and discuss them with your medical team at your regular appointments or sooner if needed. Many symptoms that worry patients turn out to be unrelated to their ependymoma, but it's always better to check and receive reassurance.

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