Skin cancer is a type of cancer that grows in the skin tissue. This condition is characterized by changes in the skin, such as the appearance of lumps, patches, or moles of abnormal shape and size.
Skin cancer is strongly suspected to be caused by exposure to ultraviolet rays from the sun. UV rays can cause damage to cells on the skin, causing skin cancer.
There are three types of skin cancer that most often occur, namely:
- Basal cell carcinoma, which is skin cancer originating from cells in the deepest part of the outermost layer of skin (epidermis).
- Squamous cell carcinoma, which is skin cancer that originates from cells in the middle and outer part of the epidermis.
- Melanoma, which is skin cancer originating from skin pigment-producing cells (melanocytes).
Melanoma is less common than carcinoma basal cellor squamous cell carcinoma, but more dangerous.
Causes of Skin Cancer Skin
cancer is caused by changes or genetic mutations in skin cells. The cause of the change itself is not known for certain, but it is thought to be due to excessive sun exposure.
Ultraviolet rays from the sun can damage the skin and trigger abnormal growth of skin cells. This condition has the potential to develop into cancer.
In addition, there are several factors that can increase a person's risk of developing skin cancer, namely:
Internal factors
- History of skin cancer
Someone who has had skin cancer has a high risk of getting skin cancer again. The risk of skin cancer will also increase if you have a family member with a history of skin cancer.
- WhiteSkin
skincancer can affect anyone regardless of skin color. However, fair-skinned people have less melanin, so protection against ultraviolet rays is weaker.
- Mole
A person who has many moles or moles with a large size is more at risk of developing skin cancer.
- Low immune systemlow
People withimmune systems are at high risk of developing skin cancer, including people with HIV/AIDS and people taking immunosuppressive drugs.
- Solar keratosis
Sun exposure can cause the formation of rough, scaly patches of varying color on the face or hands. This condition is called solar keratosis. Solar keratosis is a precancerous condition and has the potential to turn into cancer.
External factors
- Sun exposure
People who are often exposed to the sun, especially those who do not use sunscreen, are more at risk of developing skin cancer. This condition occurs in people who live in tropical or highland climates.
- radiation exposure
Patient aeczematopik or acne therapy, treatment with radiation therapy (radiotherapy) at high risk of skin cancer, particularly basal cell carcinoma.
- Exposure to chemicals
There are many chemicals that are thought to cause cancer (carcinogenic), one of which is arsenic.
Symptoms of Skin Cancer
Symptoms or signs of skin cancer generally appear on parts of the body that are often exposed to sunlight, such as the scalp, face, ears, neck, arms, or legs. However, skin cancer can also occur in parts of the body that are rarely exposed to the sun, such as the palms of the hands, feet, or even the genital area.
The following are symptoms of skin cancer by type:
Basal cell carcinoma Basal cell
carcinoma is characterized by soft, shiny bumps on the surface of the skin, or flat lesions on the skin that are dark or reddish brown in color that resemble flesh.
Squamous cell carcinoma
Squamous cell carcinoma is characterized by hard red bumps on the skin, or lesions that are flat and scaly like crusts. Lesions can itch, bleed, and crust over.
Melanoma skin cancer Melanoma
skin cancer is characterized by brown patches or lumps. Melanoma does resemble ordinary moles, but they are more irregular in shape. The ABCDE method can be used to distinguish common moles from melanoma. Such methods include:
- Asymmetrical, most melanomas have an asymmetrical shape.
- Border (periphery), melanoma edges tend to be irregular.
- Color (color), the color of melanoma is more than one.
- Diameter, the size of the melanoma more than 6 mm.
- Evolusi, namely a change in shape, color, or size of a mole.
- Evolution is the most important sign of melanoma.
- When todoctor
see aImmediately consult a doctor if abnormalities or changes in the skin appear, such as the appearance of lumps, boils, changes in skin color, moles that suddenly enlarge or change shape, and sores on the skin that are difficult to heal. The doctor will examine and determine the cause of the changes that occur in your skin.
Keep in mind that not all changes in the skin are caused by skin cancer. However, examination or screening for skin cancer needs to be done to detect cancer early, in order to prevent cancer from developing to an advanced stage.
- Diagnosis of Skin Cancer
In diagnosing skin cancer, the doctor will perform a skin examination to see abnormalities that occur. The examination was carried out on the shape, size, color, and texture of the skin. Through this examination, the doctor can determine whether the changes are caused by cancer or another disease.
To confirm the diagnosis, a dermatologist will perform a skin biopsy. A biopsy is done by removing a sample of skin tissue, then examined in a laboratory.
If the skin disorder that occurs is due to cancer, the doctor will determine the severity or stage of the skin cancer experienced by the patient. Doctors may perform other tests, such as a CT scan, MRI, or lymph node biopsy, to see if the cancer has spread.
The following are the stages of skin cancer:
- Stage 0
Cancer cells are still in the same place and have not spread beyond the epidermis or the outermost layer of skin.
- Stage 1
Cancer has spread to the layer of skin below the epidermis or called the dermis, but the size is no more than 2 cm.
- Stage 2 The
cancer has not spread to other tissues, but has grown in size to more than 2 cm.
- Stage 3 The
cancer has spread to other surrounding tissues, such as bone, and is larger than 3 cm.
- Stage 4
Cancer has spread to other tissues far from the site of origin of the cancer, such as lymph nodes, and is more than 3 cm in size.
Skin Cancer Treatment Skin
cancer treatment depends on the type, location, and stage of skin cancer. There are several types of treatment that can be done, namely:
1. Creams for skin cancer
Treatment methods by giving creams are done to treat early-stage cancer that only attacks the top layer of the skin.
2. Cryotherapy
Cryotherapy is performed using liquid nitrogen to produce cold temperatures and kill cancer cells at an early stage.
3. Surgery The
operation is performed by removing the cancerous tissue and the surrounding healthy skin. Surgery can also be performed by removing tumors that have grown in each layer of the skin and examining each layer under a microscope until there are no more cancer cells left (Mohs surgery).
4. Curettage
This treatment method is done by removing cancerous tissue using a special tool called a curette. Then, the remaining cancer cells will be burned with an electric needle (cauterization).
5. Radiotherapy
This treatment is done by exposing radiation to kill cancer cells. Radiotherapy is used when surgery cannot be performed or the cancer cells have spread.
6. Chemotherapy
Chemotherapy is done by giving drugs that are taken orally or injected to kill cancer cells.
7. Biological therapy Biological
therapy is done by giving drugs or substances that can stimulate the immune system to fight cancer cells.
Complications of Skin Cancer
Every patient with skin cancer is at risk of developing skin cancer again. These recurring skin cancers can occur in the same area of the body or in the surrounding tissue. Skin cancer can also occur in other parts of the body. This condition occurs when cancer cells have spread to other parts of the body.
Skin cancer can directly affect appearance, especially if it appears in areas that are not covered by clothing. This condition can trigger anxiety and depression in sufferers.
Prevention of Skin Cancer
The best way to prevent skin cancer is to protect the skin from exposure to sunlight or other sources of ultraviolet light , such asequipment tanning skin. Steps that can be taken include:
- Avoid sunlight during the day, because the strongest exposure to ultraviolet rays from the sun takes place from 10 am to 4 pm.
- Use sunscreen regularly, to prevent the absorption of ultraviolet rays into the skin and reduce the risk of skin damage from the sun.
- Wear clothing that covers the body, such as long sleeves and long pants, to protect your skin from the sun.
- Also use a hat and sunglasses when going out, to provide more protection for the head and eyes from solar radiation.
- Avoid using tanning beds, which are tools to darken the skin because they can emit ultraviolet radiation that is harmful to the skin.
- Be careful when using medications that cause side effects on the skin, such as antibiotics. To be safe, consult a doctor first.
- Perform regular skin examinations and consult a doctor immediately, if you suspect any changes or abnormalities in the skin.