Skin cancer
Find a doctorSkin cancer is the most common cancer in the U.S. It’s also highly treatable when detected early. At Atrium Health Floyd and Harbin Clinic, our dermatologists have extensive experience diagnosing and treating all forms of skin cancer. We’re by your side at every step of care with guidance, compassion and clinically proven treatments.
What is skin cancer?
Skin cancer occurs when cells in your skin start to grow out of control. This cell growth causes changes that can vary in appearance. While skin cancer can develop anywhere, it usually appears in areas routinely exposed to the sun.
The American Academy of Dermatology estimates that one in five people in the U.S. will develop skin cancer. Most skin cancers grow slowly and respond well to treatment, but some can spread quickly and become life-threatening.
Are moles related to skin cancer? Should you have a mole removed?
Moles are groups of deeply pigmented skin cells. They can be flat or raised above the skin’s surface. Most moles are not precancerous, but some can turn into melanoma. Your doctor may recommend removing moles that are large, mottled or become easily irritated, which can all be signs of precancerous changes.
Causes of skin cancer
The primary cause of skin cancer is ultraviolet (UV) radiation, usually from the sun. Tanning booths and sunlamps are also a source of UV light.
Skin Cancer types
Most skin cancers start in the top layer of skin (epidermis). Doctors classify skin cancer by which cells in the epidermis are affected.
This skin cancer is the most common, yet least dangerous type. It starts in basal cells, which make up the lower layer of the epidermis.
Basal cell carcinoma tends to grow slowly, rarely spreading beyond the original site. Left untreated, it can grow into tissues beneath the skin and cause damage, particularly when located near the eye.
Squamous cell carcinoma is the second most common type of skin cancer. It develops in flat squamous cells near the skin surface. This type of skin cancer is more likely than basal cell carcinoma to invade deeper layers of skin and spread to other parts of the body.
Squamous cell carcinoma can develop from other skin conditions, such as:
- Bowen disease (squamous cell carcinoma in situ)
- Actinic keratosis
Melanoma accounts for only about 1% of skin cancers, but a large proportion of skin cancer deaths. It starts in pigment-producing skin cells called melanocytes and often looks like an “ugly” mole.
Melanoma can be aggressive and spread quickly. When diagnosed early, treatment is often effective. Improvements in care are helping people with advanced melanoma live longer and healthier.
Skin cancer symptoms
Recognizing skin cancer can be challenging. In some cases, the changes are subtle or look like other common skin conditions.
Basal cell skin cancer grows slowly and is usually painless. You may notice a bump or slightly raised area that is:
- Pearly, waxy or scar-like
- Red and scaly
- White, light pink, flesh-colored or brown
Basil cell carcinoma may also appear as a sore that:
- Bleeds easily or doesn’t heal
- Has irregular blood vessels in or around it
- Is sunken in the middle
- Oozes or has crusty spots
Squamous cell carcinoma usually occurs on sun-exposed areas of skin and may look like:
- A raised bump with a sunken center
- An open sore
- Flat, reddish patches
- Rough, thick skin
Bowen disease often appears as a large, scaly, reddish area.
Melanoma can occur as a new mole or changes in an existing mole. Common locations for melanoma include the chest, back, legs, face and neck, but it can develop anywhere.
When assessing moles, doctors check for the ABCDEs of melanoma, which include:
- Asymmetry: Not the same shape on both sides
- Border irregularity: Poorly defined or blurred around the edges
- Color: Different shades of tan, brown or black
- Diameter: Larger than one-quarter inch
- Evolving: Changing in size, shape or color
Other signs a mole might be melanoma include:
- Itching or tenderness
- Redness or swelling beyond the edge of the mole
- Oozing or bleeding
- Sore that doesn’t heal
Skin cancer diagnosis
You may notice a suspicious area of skin (lesion) at home, or your doctor may detect it during a routine exam. To determine if a skin lesion is cancer, your doctor will perform a skin biopsy. This procedure involves removing all or part of the abnormal area and sometimes a margin of healthy tissue around it. A pathologist looks at the tissue under a microscope to check for cancer cells.
If the lesion is cancerous, your doctor may order other tests. Genetic testing shows if there are specific genetic changes that might affect your treatment options. Biopsies of nearby lymph nodes and imaging help your doctor determine if cancer has spread.
Skin cancer risk factors
Anyone can get skin cancer, but your risk is greater if you spend a lot of time in the sun. Other factors that increase your risk include:
- Fair skin that freckles easily
- Family history of skin cancer
- History of blistering sunburns
- Light-colored hair and eyes
- Many moles, or moles of unusual size or shape
- Past radiation therapy for acne
Skin cancer prevention
Skin cancer is preventable much of the time. To reduce your risk:
- Avoid prolonged exposure to the sun: UV rays are most intense between 10 a.m. and 2 p.m. and during the summer months. The sun’s rays can also pass through clouds and reflect off sand and snow.
- Protect your skin: Wear protective clothing, such as a wide-brimmed hat and long sleeves, when you’re outdoors. On any exposed skin, use sunscreen with an SPF of at least 30. Reapply sunscreen frequently, especially after swimming or sweating.
It’s also important to detect skin changes that could turn into cancer as early as possible. Talk to your doctor about skin cancer screening and how often you should perform skin self-exams at home. Let your doctor know if you find anything suspicious.
Skin cancer treatment
Skin cancer treatment varies, depending on the cancer type, stage and location. The first step is to remove the lesion, often surgically. For some basal cell and squamous cell skin cancers, nonsurgical treatment may be an option.
Common skin cancer treatments include:
- Topical medications: You apply a chemotherapy or other anticancer medicine directly to your skin.
- Photodynamic therapy: Your doctor applies a topical medication that destroys cancer cells when activated by a special light.
- Cryosurgery: Your doctor uses liquid nitrogen to freeze the cancer cells.
- Curettage and electrodessication: Your doctor scrapes the cancer with a sharp tool, then applies an electric current to destroy remaining cancer cells.
- Simple excision: Your doctor surgically removes the skin cancer and stitches the skin together.
- Mohs surgery: A specially trained physician removes the cancer one layer at a time.
Cancer that has spread to the lymph nodes or elsewhere in the body may require more extensive surgery and other treatments, such as:
- Chemotherapy and other anticancer drugs
- Radiation therapy
Your treatment team will discuss your options with you before starting treatment. They’ll help you understand the possible risks and side effects of treatment and what to expect.
Treatment typically cures basal cell and squamous cell carcinoma and early-stage melanoma. However, treatment can also cause scarring and other changes in appearance and function. Plastic surgeons are often part of the cancer care team. They offer advanced reconstructive techniques to give you the best possible cosmetic and functional outcome.
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