Have you noticed unusual small lumps forming on your body? Or maybe you've heard that someone in your family has developed cancer at a very young age. Sometimes there is a rare genetic condition behind these things. One such condition is Cowden Syndrome. Shall we talk about this in a little more detail today?
What is Cowden Syndrome?
Simply put, Cowden syndrome is a rare genetic condition that is passed down through our genes. People with this condition are more likely to develop noncancerous, tumor-like growths. However, they are at a slightly higher risk of developing certain types of cancer.
How common is this?
Not really. This condition, called Cowden Syndrome, is very rare . According to medical experts, it affects about one in two hundred thousand people. However, sometimes its symptoms are not well-known, so it can go undiagnosed.
So is Cowden Syndrome a cancer?
No, Cowden syndrome is not cancer. However, people with this condition are more likely to develop certain types of cancer , and they may also develop at a younger age than normal (early-onset) . 'Early-onset' means that the disease develops at a younger age than normal. For example, a woman with Cowden syndrome may develop breast cancer before the age of 40. Breast cancer is not usually seen before the age of 60. There are other types of cancer that may be associated with this condition:
- Endometrial cancer (uterine cancer)
- Thyroid cancer (especially the type called `follicular thyroid cancer`)
- Colorectal cancer
- Kidney cancer
- Melanoma, a skin cancer
What is the difference between Cowden Syndrome and PTEN hamartoma tumor syndrome?
This is a bit of a deep subject, but I'll keep it simple. `PTEN hamartoma tumor syndrome (PHTS)` is a group of inherited symptoms caused by changes (mutations) in the `PTEN` gene. About one in four people with Cowden syndrome have been found to have this mutation in the `PTEN` gene.
However, because the symptoms of both are very similar, if you have Cowden syndrome or a similar condition, your doctor will treat you as if you have PHTS. This is because early and frequent screenings for cancer are important in both.
What are the symptoms of Cowden Syndrome?
Symptoms of this condition often begin to appear in the body in the 20s. Some people only discover they have Cowden syndrome when they seek medical advice, either because of lumps called hamartomas or because of cancer that develops at a young age.
Hamartomas (pronounced 'ha-ma-to-mas') are the most common and prominent feature of Cowden syndrome. They are non-cancerous, tumor-like growths. They can develop anywhere on the body, both internally and externally. They are most commonly found on the neck, face, and scalp.
There are other symptoms:
- Having a head that is larger than normal (macrocephaly) .
- Small, smooth lumps on the skin (trichilemmomas).
- Clear blister-like bumps on the soles of the feet, palms, and backs of the hands (acral keratosis).
- Wart-like growths on the tongue, gums, back of the throat, and tonsils (`oral papillomatosis`).
But it's important to remember this: Just because you have some of these symptoms doesn't mean you have Cowden syndrome. Doctors usually suspect the condition if you have a combination of these specific symptoms .
What causes Cowden Syndrome?
Cowden syndrome is caused by certain genetic mutations that you inherit. Simply put, genes control how cells in our body grow, divide, and die. In Cowden syndrome, due to a defect in these genes, abnormal cells grow out of control and persist when they should. Eventually, these cells clump together to form non-cancerous tumors called hamartomas.
Scientists are still researching the genetic changes that increase the risk of this cancer, the genes associated with Cowden syndrome. Some people with Cowden syndrome do not have a mutation in the `PTEN` gene. In a small number of people, mutations have been found in other genes, such as `PIK3CA/AKT1`, `SDHB-D`, `KLLN` and `SEC23B`. So, medical researchers are continuing to look into this.
How is this passed down through generations?
People with Cowden syndrome inherit the condition in an ``autosomal dominant pattern.'' This means that you inherit a normal gene from one of your biological parents and a mutated gene from the other parent. This means that each child has a 50% chance of inheriting the mutated gene.
What are the risk factors for Cowden Syndrome?
The only major risk factor identified so far is family history . This means that if someone in your family has Cowden syndrome, you have a higher chance of getting it too.
What are the possible complications of this condition?
If you have Cowden syndrome, you are at increased risk of developing certain types of cancer. You may also develop cancer at a young age , or you may develop more than one type of cancer at different times during your life. Therefore, it is important to talk to your doctor about when and how often you should have cancer screenings.
How do doctors diagnose Cowden Syndrome?
Cowden syndrome is a complex disease with many symptoms and associated conditions. Even if you have one or more of these symptoms, it does not necessarily mean that you have Cowden syndrome.
To diagnose Cowden syndrome, doctors compare your condition to diagnostic criteria developed by doctors who specialize in inherited cancer syndromes. In this process, your condition is matched against major criteria and minor criteria . You are diagnosed with Cowden syndrome if you have a specific combination of these criteria.
Doctors may suspect you have Cowden syndrome if:
- Apart from `macrocephaly` (large head), there are three main criteria .
- Having one major criterion or three minor criteria .
- Having four minor criteria .
- One of your relatives has Cowden syndrome or a related condition such as Bannayan-Riley-Ruvalcaba syndrome (BRRS).
Criteria for Cowden Syndrome
Here are some of the major and minor criteria that doctors consider:
Major criteria:
- Breast cancer
- Endometrial cancer
- Follicular thyroid cancer
- Having many hamartomas in the gastrointestinal (GI) tract
- Macrocephaly - (head circumference exceeding a certain value)
- The presence of dark spots (pigmented macules) on the glans penis
- When a piece of skin is taken and examined (biopsied), it shows signs of a `trichilemmoma'
- Having a lot of thickened skin (palmoplantar keratosis) on the hands and feet
- Having a lot of wart-like growths (`papillomatosis`) inside the mouth (oral mucosal)
- Abundance of wart-like bumps (`papules`) on the skin of the face (`cutaneous facial`)
Minor criteria:
- Colon cancer
- Esophageal glycogenic acanthosis (this is a specific condition that occurs in the esophagus)
- Autism spectrum disorder
- Learning disabilities
- Papillary thyroid cancer
- Thyroid problems (e.g. goiters, adenomas)
- Kidney cancer
- Fatty tumors (`Lipomas`)
- Having a single `hamartoma` in the digestive system
- Fatty deposits in the testicles (`Testicular lipomatosis`)
If your doctor thinks you may have Cowden syndrome, he or she will ask about your family history and may also order genetic testing to see if you have a genetic mutation.
What should you do if you think you have this condition?
If you have these symptoms, it's important to see a genetics professional for advice . They can then decide if you need to do things like PTEN gene testing. They can also refer you to a genetic counselor . The genetic counselor can help you understand how genetic conditions like a PTEN mutation might affect you. They can also explain the results of the genetic testing and what cancer screenings you might need if you have PTEN hamartoma tumor syndrome (PHTS). Because Cowden syndrome is a rare condition, it's a good idea to find a team or center that specializes in PHTS and Cowden syndrome.
How do doctors treat Cowden Syndrome?
Cowden syndrome is a condition that is associated with a variety of conditions, including skin problems and cancer. Often, people find out they have Cowden syndrome when they are being treated for another condition that is related to the syndrome.
However, it is essential for people with Cowden syndrome, but who do not currently have cancer , to have regular, early cancer screenings . Here are a few examples:
- For breast cancer: Annual mammograms starting at age 30. Magnetic resonance imaging (MRI) scans may also be recommended for those with dense breasts.
- For thyroid cancer: Annual thyroid ultrasound starting at age 7. However, if you have symptoms (e.g., a thyroid nodule, difficulty swallowing), you may need to have these tests done earlier.
Similarly, your doctor may also recommend screening for other types of cancer (e.g., uterine, kidney, colon cancer) at regular intervals, depending on your individual situation.
What should you expect when living with this condition?
If you have Cowden syndrome, your genetic counselor can help you understand the results of your genetic testing. If your genetic testing shows that you have PTEN hamartoma tumor syndrome (PHTS), they can also explain what cancer tests you need. You may need to start getting these tests at a younger age than usual . However, having these tests regularly can help you find cancer before you have symptoms.
What is the life expectancy of people with Cowden Syndrome?
The life expectancy with Cowden syndrome depends on your individual circumstances. For example, if you are diagnosed with breast cancer at a young age and it has spread, your life expectancy may be shorter than someone who was diagnosed with the cancer early and treated. However, getting the recommended cancer screenings can help you either prevent cancer from developing, or at least catch it at an early stage when it can be treated.
How do I take care of myself? / How do you take care of yourself?
If you have Cowden syndrome, it is important to have regular cancer screenings that can detect cancer before you have symptoms. Ask your doctor if there are any specific symptoms you should watch out for that could be cancer. If you have Cowden syndrome, ask your genetic counselor if other family members should also get genetic testing.
Should I see a doctor? / Should you see a doctor?
Yes, absolutely. Cowden syndrome, especially if you are diagnosed with a ``germline PTEN mutation`` or ``PTEN hamartoma tumor syndrome (PHTS),`` is associated with many types of cancer. Your medical team will closely monitor your overall health and the results of regular cancer tests.
What questions should I ask my doctor? / What questions should you ask your doctor?
It's a good idea to ask questions like these when you see your doctor:
- "I have developed one type of cancer because of this condition. Is it possible for me to develop other types of cancer?"
- "Genetic tests show that I have a mutated `PTEN` gene. Should the rest of my family be tested for this gene?"
- "Could this condition affect the children I have in the future?"
- "I have Cowden syndrome, but I don't have the `PTEN` mutation. So what other genetic mutations could cause this?"
- "Genetic tests show that I have a mutated gene that causes Cowden syndrome. Will that definitely cause me to develop cancer?"
Cowden syndrome is a rare, hereditary disease that is difficult to diagnose. It is best to see a geneticist to find out for sure if you have PTEN hamartoma tumor syndrome (PHTS). Your doctors can then plan a treatment plan that is tailored to your condition. Sometimes, if genetic testing does not find the PTEN mutation, you may need to have several different tests to rule out other conditions. Your genetic counselor will guide you on what to do next.
It can be a scary thought to know that something is wrong with your body, but you don't know what it is or what to do about it. If you find out that you have Cowden syndrome, you will have to live with the knowledge that you may develop various types of cancer for the rest of your life. Even though you know that there are tests that can detect cancer before symptoms appear, the thought can be really scary. If you have this condition, your medical team will be constantly monitoring your health and test results. They will take quick action to treat the cancer before it spreads. So, it's important to be courageous, follow your doctor's advice, and get regular checkups.
To sum it all up (Take-Home Message)
Okay, so let's look at some of the most important things you need to remember from what we've talked about:
- Cowden Syndrome is a rare genetic condition that causes non-cancerous lumps (hamartomas) to form in the body, as well as an increased risk of developing certain types of cancer (especially breast, thyroid, and uterine cancer).
- This is not directly cancer, but it is very important to have regular screenings due to the risk of cancer .
- Symptoms vary. The main ones are a large head (macrocephaly) and specific lumps on the skin and mouth. These symptoms alone do not necessarily indicate the presence of the disease, and the diagnosis is made based on medical criteria.
- This condition is often associated with changes in the gene `PTEN`. Genetic testing and genetic counseling are very important in this.
- Treatment is primarily focused on early detection and treatment of cancer . Therefore, get the tests (mammograms, ultrasounds, etc.) recommended by your doctor on time.
- If you have any doubts about this condition, or if someone in your family has these symptoms, do not hesitate to see a doctor and seek advice. It is very important to be informed and take action early.
Remember, living with this condition can be challenging, but with proper medical supervision and support, you can manage it. You are not alone.
` Cowden Syndrome, Genetic Diseases, Cancer Risk, PTEN Gene, Skin Lumps, Hematoma, Hereditary Diseases, Cancer Testing
💬 අදහස් (0)
තවමත් කිසිදු අදහසක් පළ කර නොමැත. ඔබේ අදහස පළමු වරට මෙහි එක් කරන්න.
ඔබේ අදහස එක් කරන්න