Have you ever heard of a rare genetic disease? Sometimes, our bodies can develop problems that we don't even realize we have. Today, we're going to talk about one such rare condition that's really important to know about. It's called Turcot Syndrome.
What is Turcot Syndrome simply?
Simply put, Turcot Syndrome is a rare genetic condition. It mainly involves the development of small growths (also called polyps) in our digestive system, that is, in the intestines, and tumors in the brain or spinal cord. Imagine how annoying it can be to have problems in two places at once.
When these small growths (polyps) form in the intestines, some people may experience symptoms such as rectal bleeding, increased bowel movements (diarrhea), and stomach cramps . Also, depending on the size and location of the tumor in the brain or spinal cord , neurological symptoms such as headaches, blurred vision, loss of balance, and frequent falls may occur.
Some medical researchers believe that Turcot Syndrome may be a variant of Familial Adenomatous Polyposis (FAP). However, this is not yet proven. FAP is also a condition in which many small polyps develop in the colon before cancer develops. There may be a connection between the two, as some Turcot Syndrome patients have a mutation in the APC gene. Mutations in the APC gene can also cause FAP.
This is so rare that only a very small number of cases, about 150, have been reported in medical records worldwide. So you can imagine how rare this is.
Is this a hereditary disease? How does someone develop it?
Yes, Turcot Syndrome is an inherited genetic disorder, meaning it is passed down from parents to children through genes . It is caused by certain changes, or mutations, in our genes. It can affect us in two main ways:
1. Type 1 Turcot Syndrome: This is also known as "true" Turcot syndrome. It is inherited as an autosomal recessive trait. Simply put, for a child to have this condition, both parents must inherit the gene mutation. It's like winning the lottery (but that's not a good thing!). This type is most often caused by mutations in the genes `(MLH1)` and `(PMS2)`.
2. Type 2 (Type 2) Turcotte Syndrome: This is inherited as an ``autosomal dominant trait''. This means that a child can develop this condition even if they inherit the relevant gene mutation from only one parent, either the mother or the father. This is caused by a change in the ``(APC)`` gene. The function of this ``(APC)`` gene is actually to prevent the formation of cancerous tumors in our body or to stop them from growing. So when that gene does not work properly, problems arise.
What are the main symptoms of this disease?
The main symptoms of Turcot Syndrome are, as mentioned earlier , polyps in the intestines and one or more tumors in the brain or spinal cord. Some people can have dozens of these polyps, which means they start developing at a very young age.
Symptoms of small growths (polyps) in the intestines
The number of these small growths (polyps) that develop in a person can vary from person to person.
- These polyps that develop in people with Type 1 Turcotte syndrome are more likely to become cancerous.
- People with Type 2 Turcotte syndrome are more likely to develop the previously mentioned condition ``Familial Adenomatous Polyposis (FAP)``.
These small growths (intestinal polyps) that form in the intestines can cause symptoms such as:
- Abdominal pain
- Constipation
- Diarrhea
- Rectal bleeding
- Weight loss, that is, weight loss
Symptoms of Brain/Spinal Cord Tumors
Tumors that develop in the brain or spinal cord can affect our central nervous system (CNS). Our central nervous system is the system that controls many of the body's functions, including the brain and spinal cord. This can cause symptoms such as:
- Loss of balance, frequent falls (Balance problems)
- Severe headaches
- Loss of sensation - numbness in the arms, legs, or parts of the body
- Nausea or vomiting
- Seizures
- Vision problems, including double vision or blurred vision
- Weakness in one part of your body (for example, one arm, one leg, or one side of your body)
Other characteristics and types of cancer with increased risk
People with Turcot Syndrome sometimes develop noncancerous fatty tumors (lipomas) or small brown spots (café-au-lait spots) on the skin .
Additionally, this condition increases the risk of developing certain types of cancer and tumors. The main ones are:
- Colon cancer
- Astrocytoma (a type of brain tumor)
- Ependymoma (a type of tumor that starts in the cells that line the fluid-filled spaces of the brain and spinal cord)
- Glioma (tumors that arise from the supporting cells of the brain)
- Glioblastoma (a very aggressive type of brain cancer)
- Medulloblastoma (a type of cancer that develops in the cerebellum, that is, in the lower part of the brain near the skull)
- Basal cell carcinoma of the skin
How is this disease diagnosed? (Diagnosis)
To determine if you have Turcot Syndrome, your doctor will perform several tests, mainly looking at your brain and the areas around your intestines. For this:
- Tests such as X-rays, MRIs, and CT scans may be done to look for brain tumors or intestinal polyps. In some special cases, a PET scan may also be recommended.
- Colonoscopy: This involves inserting a small, lighted tube through the anus to examine the inside of the large intestine and rectum for any abnormalities.
- Biopsy test: If a tumor is found in the colon or brain, a small piece of tissue is taken and examined under a microscope.
Most importantly, if one of your parents has Turcot Syndrome, you are more likely to be screened for the condition.
In such a case, the doctor may recommend things like:
- DNA testing: This genetic testing can detect the presence of mutated genes that cause Turcotte syndrome.
- Sigmoidoscopy: This examines the lower part of the large intestine (the sigmoid colon). Young people who have inherited a gene for Turcotte syndrome can continue to have colon exams until they are about 35 years old. This allows for early detection and treatment of small growths (polyps) in the colon.
What are the treatments for Turcot Syndrome?
Treatment for Turcot Syndrome varies depending on the symptoms.
You may need to have a polypectomy to remove small growths (polyps) in your colon. Your doctor may also recommend several surgeries to stop these growths from forming again. For example:
- `Ileoproctostomy`: The large intestine is removed and the rectum and small intestine are connected.
- `Ileostomy`: The rectum is removed and the small intestine is connected to the outside of the abdomen (to create a separate way for stool to exit).
- `Ileoanal anastomosis`: Connects the small intestine and the anus.
- Colectomy: Removal of part or all of the colon.
- `Proctocolectomy`: Both the colon and rectum are removed.
Treatment for tumors in the brain or spinal cord can vary. Doctors usually try to remove the tumor. During treatment, they try to minimize damage to the healthy tissue around it. To do this:
- `Chemotherapy`
- Radiation therapy
- Surgery
Treatment methods such as:
Am I also at risk of developing this disease?
If one of your parents has Turcot Syndrome, you have a higher chance of developing the condition. Or, you may be a genetic carrier. Being a genetic carrier means you don't have symptoms, but you have the gene that causes the condition, so your children can pass it on.
If you suspect that you may have Turcot Syndrome, your doctor may recommend DNA testing. This can check for the presence of the relevant gene mutation.
What happens when you live with this disease? Is it incurable?
Unfortunately, there is no cure for Turcot Syndrome. If you have this condition, the most important thing is to work with your doctor to get regular screenings for brain tumors and colorectal cancer. The earlier you detect something like cancer, the better your chances of a successful outcome. So, it is important to not panic and follow your doctor's advice.
Important questions to ask your doctor
You can ask your doctor some questions like these:
- What is the most likely cause of my symptoms?
- What tests should I do to know for sure if I have Turcot Syndrome?
- Am I a carrier of the gene for this disease?
- What are the treatment options for Turcot Syndrome?
- What could happen if I don't get treatment?
- What are the chances of me having a child with Turcot Syndrome?
Remember, brain tumors like glioblastoma are not usually hereditary. However, people with hereditary conditions like Turcot Syndrome can sometimes develop these tumors.
Finally, a few things to remember
Turcot Syndrome is a rare, genetic condition that causes small growths in the intestines (polyps) and tumors in the brain or spinal cord. Treatment varies depending on the symptoms. You may need surgery to remove part of your intestines or a tumor in your brain or spinal cord. Although there is no cure for this condition, monitoring your symptoms, getting regular tests, and getting treatment early can help you manage your condition. Therefore, it is important to take care of your health.
Turcot Syndrome, genetic diseases, colon polyps, brain tumors, cancer risk, genetic testing
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