Have you ever noticed that your child constantly complains of headaches, sometimes vomits, has trouble seeing, or is more tired than usual? Sometimes these things can be symptoms of a common illness. However, rarely, they can be a sign of a more serious condition, such as a germinoma . Don't worry, we'll talk about this in detail today.
What is Germinoma? Let's understand it very simply!
Simply put, a germinoma is a type of tumor that grows inside your brain. Doctors also call these "intracranial germinomas." They most commonly develop in two areas of the brain. One is the pineal region , which is where your pineal gland is located. The other is the suprasellar region , which is where your pituitary gland is located.
Now you may be wondering what germ cell tumors (GCTs) are. They arise from the reproductive cells in our bodies. That is, from the cells that produce sperm in a man and eggs in a woman. Usually, these germ cell tumors (GCTs) arise in the ovaries or testicles. But germinomas are a little different. What happens in this case is that those germ cells travel to the brain or spinal cord and grow there as a tumor. While some of these can be non-cancerous (benign), most germinomas are cancerous (malignant).
But here's the thing, these germinomas have good treatments, and the prognosis is very good. They grow slowly, so there's a good chance they can be completely cured with treatment.
How common is this germinoma?
In fact, germ cell tumors that form in the brain are very rare. However, among those rare tumors , germinomas are the most common. They are most commonly diagnosed in children and young adults, between the ages of 10 and 20. It has also been found that boys are more likely to develop them than girls.
What are the symptoms of a germinoma?
When a germinoma forms in the brain, it can cause pressure on the cerebrospinal fluid (CSF) inside the brain. This is called hydrocephalus . The pressure caused by this tumor or the pressure caused by the accumulation of that fluid can cause various symptoms. Let's see what they are:
- Frequent headaches: This can be a different, more severe headache than a normal headache.
- Nausea and vomiting: This condition can be worse, especially in the morning.
- Problems with muscle coordination (ataxia): Things like walking with a limp, or being unable to keep your balance.
- Vision problems: Blurred vision, double vision, difficulty looking up, etc.
- Mood changes: Suddenly feeling angry, sad, or anxious.
- Difficulty concentrating: It is difficult to keep your mind focused while studying or doing work.
- Fatigue: Feeling tired no matter how much sleep you get.
In addition to these symptoms, hormone-related symptoms may also occur depending on the location of the tumor. For example, if a tumor develops near the pituitary gland, the following may occur:
- Feeling extremely thirsty and urinating frequently: This is a sign of a condition called diabetes insipidus .
- Early or delayed puberty.
- Impaired growth in children.
- Excessive sleepiness or sluggishness.
Important: Don't be afraid that it's a germinoma just because you have one or two of these symptoms. However, if these symptoms persist, especially in a child, it's best to see a doctor for advice.
Why does this germinoma form?
This is a bit of a complicated story. During the embryonic stage, that is, when a baby is in its mother's womb, those germ cells that we talked about earlier normally travel to either the ovaries or the testicles. That's where they become either egg cells or sperm cells.
However, in a germinoma, some of these cells misdirect and travel to the central nervous system , that is, the brain or spinal cord. When they do, instead of becoming egg cells or sperm cells, they grow together abnormally and form a mass in one or more areas of the brain. If left untreated, these cells can spread to other parts of the body.
Medical experts still don't know exactly why this happens in the first place. It's still in the research stage.
How to recognize a germinoma?
If a doctor suspects a germinoma, they will perform several tests.
- Imaging tests: This usually involves an MRI (Magnetic Resonance Imaging) scan. This can clearly show if there are any tumors in the brain or spinal cord.
- Tumor marker testing: Your blood and cerebrospinal fluid (CSF) will be tested for levels of chemicals called alpha-fetoprotein (AFP) and human chorionic gonadotropin (hCG) . These levels can help differentiate between a germinoma and another type of germ cell tumor.
- Biopsy: If other tests are not definitive, a doctor may take a small sample of the lump and test it in a lab to see if it contains cancer cells. However, most of the time, a biopsy is not necessary because other tests can help make a diagnosis.
It can sometimes take a while to recognize that children have a germinoma, because symptoms like attention deficit disorder and slowness can also be associated with mental health problems. Whatever the cause, the sooner your child is diagnosed, the sooner they can start the treatment they need.
Determining the stage of cancer (staging)
After diagnosis, the doctor will determine the stage of the germinoma by looking at how far it has spread. It is classified as localized (M0) , which means it has not spread, or disseminated/metastatic (M+) , which means it has spread.
This classification is very helpful for doctors in planning treatment.
How is Germinoma treated?
Most germinomas can be completely cured with radiation therapy . This treatment involves using high-energy rays, such as X-rays, to destroy the tumor. However, radiation therapy can cause short-term and long-term side effects. It can also slightly increase the risk of developing another cancer in the future.
Because of this, radiation oncologists plan treatment very carefully. Their goal is to give the maximum dose needed to kill the tumor while minimizing the risk of side effects. In some cases, chemotherapy is given before radiation therapy to shrink the tumor. This allows the germinoma to be treated with a lower dose of radiation.
What can I expect if I have a germinoma?
In fact, the prognosis for germinomas is very good. More than 90% of people who receive radiation therapy can survive for 10 years. The chances of the tumors coming back are very low. Even if they do come back, they can often be completely destroyed with another round of radiation therapy.
However, each person's experience may vary. It's important to ask your doctor how your diagnosis and treatment plan will affect your chances of recovery.
How can I take care of myself or my child?
One of the best things you can do with germinoma is to work closely with your medical team to manage the side effects of treatment. Radiation therapy and chemotherapy are effective treatments for germinoma. However, they are not without their physical and emotional toll.
No one can predict exactly how you will respond to treatment. However, your doctor can educate you about common side effects. Understanding what can happen can help you be prepared.
If you are a caregiver for a child undergoing cancer treatment, talk to your child about what is happening in an age-appropriate way. Stay with your child. Include your support people. Use all the resources you need to provide strong care for your child.
When should I see a doctor?
See a doctor if you have frequent headaches, vision problems, or other symptoms that could be signs of a brain tumor. If you notice any of these symptoms in your child, be sure to seek medical advice.
What questions should I ask my doctor?
Here are some questions you can ask your doctor:
- What stage is this germinoma in? Where is it located?
- What treatments do you recommend?
- How to manage short-term side effects of treatment?
- What long-term side effects should I watch out for?
- How often will I have to come for follow-up visits?
Finally, something to think about!
Many people get anxious and scared when they hear the word "cancer." This fear is especially heightened when the tumor is in the brain, which is like a computer in our body. However, keep in mind that this condition, called germinoma, can usually be cured with radiation therapy. This does not mean that the treatment will be easy or that there is no risk of side effects. It is also essential to go for follow-up tests to see if the tumor has returned. However, with treatment, most people recover completely from germinoma. It is very important to ask your doctor how your diagnosis affects your future prospects. Don't give up!
` Germinoma, brain tumors, cancer, childhood cancer, radiation therapy, chemotherapy, brain symptoms
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