Have you ever noticed that there is a small blister on your eyelid that doesn't heal and sometimes gets bigger? Or a small yellow lump in the corner
of your eye ? Sometimes we don't pay much attention to these things, but sometimes they can be something to be concerned about. Today we are going to talk about one such rare, but somewhat
concerning type of skin cancer.
What is Sebaceous Carcinoma?
Simply put, `Sebaceous Carcinoma` is a rare type of cancer that develops in
the oil-producing glands in our skin, the `sebaceous glands`. Did you know that the word `sebaceous` means `oil-producing`. This cancer
mostly affects the eyelids . The reason for this is that our eyelids have a large number of these oil-producing glands. However, since these glands are present not only in the eyelids, but also anywhere on our body where there is hair, this cancer can develop in other parts of the body. These glands produce an oily secretion called
`sebum` . This sebum protects our skin from germs.
Is this a serious cancer?
Yes, `Sebaceous Carcinoma` is
a type of cancer that can spread quickly, and is aggressive . It is called that because it tends to spread quickly from where it first started to other parts of the body. Cancers that have spread to other places like this are called `Metastatic cancer`.
What are other names for this?
"Carcinoma" is the medical term for cancer. Therefore, doctors may call this "sebaceous carcinoma" "sebaceous gland carcinoma" "sebaceous gland adenocarcinoma
How common is this?
Sebaceous carcinoma is
a very rare cancer . Consider that 5% to 10% of skin cancers are tumors that develop on the eyelids. Of those tumors, only about 1% are sebaceous carcinoma. It
is most common in women and in people between the ages of 60 and 80. However, it can also occur in younger people, older people, and sometimes even small children.
What are the causes of sebaceous cancer?
Experts don't know exactly why some people develop sebaceous carcinoma. However, like other types of skin cancer,
exposure to the sun's harmful ultraviolet (UV) rays is a risk factor.This is thought to be one reason. Also, people who have received radiation therapy to the head or neck, especially at a young age, are at a higher risk of developing this cancer.
What are the risk factors?
Some people are at higher risk of developing this cancer. For example:
- People with a rare hereditary condition called Muir-Torre syndrome are at increased risk of developing sebaceous carcinoma . They are also at increased risk of colorectal cancer . Muir-Torre syndrome is a form of Lynch syndrome, which causes tumors to form in the sebaceous glands.
- Some studies suggest that this risk is also slightly higher for people of Asian descent .
In addition to age and sun exposure, there are several other risk factors:
What are the symptoms?
Sebaceous carcinoma
is most commonly found on the upper eyelid , as this is where the sebaceous glands are located. However, it can also develop on the lower eyelid. Sometimes you may need to pull your eyelid shut to see if you have one.
Symptoms seen on the eyelid:
- A hard, round, yellow, painless lump that looks like a pimple.
- A wound that bleeds, doesn't heal, or heals and reappears.
- Thick, yellow or red, crusty skin can be seen at the corners of the eyelids, near the eyelashes.
Symptoms that may appear if the disease worsens:
If this ``Sebaceous Carcinoma'' is left untreated, the condition can worsen and show symptoms like these:
- Eyelashes falling out.
- The formation of watery, watery cysts on both the upper and lower eyelids.
- The eyes are red, looking like conjunctivitis .
- Visual impairment.
Are all lumps on the eyelid cancerous?
Sebaceous carcinoma is rare. So,
don't panic if you notice a lump on your eyelid . But, be sure to see a doctor to have it checked out. In most cases, it's not cancer, but a common skin condition like this:
- Eyelid swelling `(Blepharitis)`
- A chalazion (also called a 'pimple on the eye')
- Eye infection
- A lump in the eye , we call it a 'stye' (an infection of an oil gland)
The most important thing is to seek medical advice if you notice a new lump on your eyelid, a sore that doesn't heal, or anything else that's different than usual.
Where else on the body can these occur besides the eyelids?
Sebaceous carcinoma can also develop on your
head, ears, or neck . Less commonly, it can also develop on your back, chest, stomach, genitals, or buttocks. You should see a doctor if you notice any of the following:
- If you notice a change in a birthmark or other spot on your skin.
- If new boils appear on the skin, even inside the ear.
- If you notice skin bumps that are getting bigger, pink or yellow, and bleed easily .
How does sebaceous cancer spread?
Sebaceous Carcinoma is most likely to spread to
the lymph nodes . These are small glands that are part of our lymphatic system, which cleans and removes damaged cells.
How do you diagnose this exactly? (Diagnosis)
If you suspect you have something like this, you should first see
a dermatologist . He or she will look at the lump, take a small sample of it, and examine it under a microscope to see if there are any cancer cells. This test is called
a skin biopsy . If the lump is on the eyelid, you may also see
an ophthalmologist . He or she can also do this biopsy.
How do you check if the cancer has spread?
If a skin biopsy confirms that you have sebaceous carcinoma, you will need to see a team of doctors for diagnosis and treatment. Your doctor will take your medical history, do a physical exam, and check to see if the cancer has spread to your lymph nodes or other organs. An ophthalmologist will examine your eyes to see if the tumor has spread into the eye.
What are the treatments?
The main treatment for sebaceous carcinoma is surgery.
Surgical options:
- Wide local excision:This involves cutting out the cancerous tumor and a small area of healthy skin around it. This is done to ensure that all of the cancer cells are removed.
- Mohs surgery: This is a special type of surgery. The cancer and the surrounding healthy tissue (the margin) are removed in several layers. As each layer is removed, it is examined under a microscope to see if any cancer cells remain. If there are any, they are removed as well. This process is repeated until all the cancer cells are removed .
- Radiation therapy: If you are unable to have surgery, radiation therapy may be considered.
Depending on the extent of the surgery, you may also need to have
reconstructive surgery . This is done to reduce the scarring that occurs after surgery and to help restore eyelid function and facial symmetry. Your dermatologist or oculoplastic surgeon, if necessary, can perform this procedure immediately after the tumor is removed.
Treatment for advanced cancer
If sebaceous carcinoma has spread to other areas (metastatic), treatment varies, depending on where the cancer has spread. Surgery may be done to remove the affected lymph nodes. Radiation therapy or other cancer treatments may also be used.
Can this be fatal? What are the chances of recovery?
The good news is that with treatment, more than 90% of people with this disease survive. Those who receive treatment within six months of the onset of symptoms have a much better chance of recovery. However, sebaceous carcinoma can be fatal if it spreads.
Delays in diagnosis and treatment can worsen the outcome. What happens after treatment?
Because sebaceous carcinoma can be a serious cancer, even after treatment, some people,
about one in four, have a chance of the cancer recurring or spreading (metastasizing). Therefore, it is essential to see your doctor for follow-up care at the scheduled time. This way, doctors can check for recurrence and, if there are any signs of recurrence, start treatment immediately.
What can you do to improve your health?
You can increase your chances of recovery by doing these things:
- Do monthly skin self-exams. This will help you identify skin changes quickly.
- Get regular skin exams at the doctor's office.
- Take steps to reduce your exposure to the sun. That means,Using sunscreen, wearing wide-brimmed hats, and wearing UV-protective sunglasses.
What is the difference between sebaceous cancer, sebaceous hyperplasia, and sebaceous cysts?
These names can be confusing because they sound similar, but these are three different situations:
- Sebaceous hyperplasia: This is not cancer. It is a benign growth that develops in a hair follicle. You may have several soft, movable bumps like these. These are usually found on the chin, cheeks, forehead, nose, or chest, back, and shoulders.
- Sebaceous cysts: These are not cancerous either. They form under the skin when a sebaceous gland becomes blocked by a buildup of dead skin cells and oil. They can be moved around easily under the skin. They most commonly occur on the face, neck, or trunk. These cysts may need treatment if they become large or infected.
When should you see a doctor?
If you see something like this
, definitely see a doctor :
- A lump or growth on your eyelid.
- A new growth on the skin or a change in birthmarks or other spots.
- Skin lumps that bleed easily.
Things to ask the doctor
When you see the doctor, you can ask these questions:
- Why did I get this skin cancer?
- Am I at risk of developing other types of skin cancer?
- What is the best treatment for me?
- Am I at risk of the cancer spreading (metastatic cancer)?
- How often should I get cancer screenings?
- Am I at risk of developing other types of cancer inside my body?
Finally, what to remember (Take-Home Message)
If you notice any changes in your skin, it's best to tell your doctor. Most of the time, these changes are harmless. In fact, things like lumps and bumps on your eyelids can also be caused by non-cancerous conditions.
However, `Sebaceous Carcinoma` is a rare but serious disease that can spread quickly. Early diagnosis and treatment can have a big impact on your recovery. Therefore, without any doubts, seek medical advice. Your health is what matters!
Sebaceous Carcinoma, Skin Cancer, Eyelid Cancer, Skin Cancer, Cancer Symptoms, Cancer Treatment
💬 Comments (0)
No comments have been posted yet. Add your comment here for the first time.
Add your comment