Have you noticed a lot of light brown spots on your skin, or on your baby's body? Maybe you see small lumps under the skin? While many people think these are normal, sometimes they can be signs of a genetic condition called 'Neurofibromatosis Type 1', or NF1 for short. Don't worry, even though the name sounds daunting, it's a manageable condition. Today, we'll talk about it all in a simple, easy-to-understand way.
Simply put, what is NF1?
NF1 is a genetic condition. It mainly affects our skin and nervous system (that is, the brain, spinal cord, and nerves throughout the body). It causes a small change in the process that controls the growth of cells in our body. Think of it like a 'switch' in our body that controls the division of cells. A person with NF1 has a small defect in this switch. As a result, some cells divide too quickly and form tumors.
These tumors typically develop on nerves. That's why we call them neurofibromas . The important thing is that most of these tumors are benign . That means they are not cancer. These tumors can develop on nerves in the brain, spinal cord, and skin. You may have heard your doctor call this condition ``Von Recklinghausen disease.'' That's another name for it.
How common is NF1?
NF1 is the most common type of neurofibromatosis. It is reported that 96% of all patients fall into this type. Worldwide, it is estimated that about one in 3,000 newborns may have NF1. This means that it is not a very rare condition.
What are the main symptoms of NF1?
The symptoms of NF1 are caused by the tumors we talked about earlier, which press on the nerves. But not everyone has the same symptoms. Some people have very few symptoms, while others may be affected a little more. Let's take a look at the main symptoms.
| Symptom | A simple explanation |
|---|---|
| Café au lait spots | These are like the light brown color that comes from adding a little milk to your coffee. They are a type of flat spot on the skin's surface. For diagnosis, having more than six of these spots is usually considered an important feature. |
| Neurofibromas | Nerve tumors that form under the skin. These can develop anywhere on the body. Some are as small as a pea, while others are larger. They may be soft to the touch or slightly firm. |
| Spots in the armpits and groin | A distinctive feature of this disease is the appearance of small spots (freckles) in the armpits, groin, and sometimes under the breasts of women. |
| Changes in the eyes | Small brown lumps (Lisch nodules) may develop in the iris of the eye. Also, tumors (optic gliomas) may develop in the nerve connecting the eye and the brain. This can cause vision problems. |
| Bone problems | Things like scoliosis, bowed legs, a larger than normal head (macrocephaly), and short stature can be seen. |
| Attention problems | Some children and adults may develop conditions such as attention deficit hyperactivity disorder (ADHD). |
| Pain | In places where tumors have formed, they can cause pain due to nerve compression. They can also affect the function of some organs. |
The important thing is that not all of these characteristics occur in the same person. And not all of them are visible at birth. Some of the characteristics begin to appear with age.
What causes NF1?
This is caused by a very small change in our genes. To be precise, it is a mutation in a gene called `neurofibromin 1`. This gene instructs our body to make a protein called `neurofibromin`. This protein is like a `brake` that controls the rate at which cells in our body divide. We also call this `(tumor suppressor)`.
In NF1, due to an error in the instructions in this gene, the neurofibromin protein is not produced properly. This means that the 'brake' does not work properly. As a result, some cells divide uncontrollably and form tumors.
There are two ways this genetic change can occur:
1. Inheritance from parents: If one parent has NF1, a child has a 50% chance of inheriting the condition.
2. Random occurrence: Approximately half of NF1 patients have no family history. This means that even if the parents do not have the condition, the change can occur randomly during the generation of genes in the child's body.
What are the possible complications of NF1?
Although most people do not develop serious complications, the following may sometimes occur:
- Vision loss (due to optic glioma tumors)
- Fractures or bone deformities
- Nerve damage
- High blood pressure (hypertension)
- Tumor recurrence even after treatment
- Low self-esteem due to concerns about one's appearance
Although these tumors are usually not cancerous, very rarely some neurofibromas can become cancerous. That's why it's important to get checked out by your doctor regularly.
How is NF1 diagnosed?
A doctor will first examine you to get an idea of the disease. The doctor will carefully examine your skin for spots, lumps, etc. In addition, they may perform tests to confirm the diagnosis.
- Imaging tests: Tests such as `(MRI)`, `(X-ray)` or `(CT scan)` to see if there are tumors inside the body.
- Genetic testing: A blood test to confirm whether there is a mutation in the `NF1` gene.
- Eye exam: Having your eyes examined by a specialist to check for Lisch nodules.
This disease is often diagnosed in adulthood. This is because, as we mentioned earlier, some symptoms (for example, lumps under the skin) begin to appear with age.
What are the treatments for NF1?
The first thing to say is that there is no cure for NF1 yet . But don't be afraid. There are many treatments that can help you manage your symptoms and live a more successful and fulfilling life. Treatment depends on the nature of your symptoms.
- Surgery: Tumors that are painful, compress nerves, or interfere with appearance can be removed surgically.
- Cancer treatment: If a tumor becomes cancerous, treatments such as ``chemotherapy`` are given.
- Bone treatments: Surgery or braces are used for things like spinal fusion.
- Medications: There are now specific medications, such as selumetinib, to control tumor growth. Medications are also used to treat conditions such as ADHD.
The importance of regular medical checkups
It is important for people with NF1 to see a doctor at least once a year for a complete check-up. They should also have their eyes and blood pressure checked every year. This will help them identify any new problems early and start treatment.
When should you see a doctor?
If you suspect that you or your child has symptoms of NF1, especially if you notice the following, be sure to see a doctor.
- Having more than six café-au-lait (coffee-colored) spots.
- Skin changes or lumps for no reason.
- Changes in vision.
If you are already known to have NF1, if you experience increased pain, rapid growth of tumors, or new symptoms, notify your doctor immediately.
Take-Home Message
- NF1 is a genetic condition that causes skin lesions and tumors to form on the nerves. Most of these tumors are not cancerous.
- This condition can be inherited from parents, or it can occur randomly without anyone in the family.
- Symptoms vary greatly from person to person. Also, not all symptoms appear at once, but develop over time.
- Although NF1 cannot be cured completely, there are many treatments that can help control symptoms and allow you to live a good life. Annual medical checkups are very important.
- It's normal to feel uncomfortable and sad about skin tags and bumps. Never hesitate to talk to your doctor or a mental health counselor about this.
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