They typically begin in the cells of the epidermis, the topmost layer of skin. The tumor is local and rarely spreads to other areas of the body. Basal cell carcinomas often appear as a nodule about five to six centimeters in diameter, and the outer edges are usually well-defined.
Squamous cell carcinoma is typically found on areas of the body exposed to the sun, such as the face. It typically develops in darker skin than other types. Melanoma can occur anywhere on the body, though most cases appear on the face, trunk, and lower legs of affected men and women. Even people with lighter skin can develop melanoma. Fortunately, there are some treatments for these types of skin cancer.
In the United States, about 3 million cases of nonmelanoma skin cancer are diagnosed every year, and rates have been increasing for at least 40 years. Although rates of skin cancer have increased over the years, there are fewer deaths related to melanoma than in the past. As awareness of skin cancer increases, more people are now getting screenings and self-exams. This is good news, as it will reduce the cost of health care.
If you’ve noticed an unusual mole in your body, you should seek medical attention immediately. While moles are generally harmless, if you notice more than one on your body, you’re at higher risk for melanoma skin cancer. However, if you notice a mole changing color or growing in size, consult a doctor. There are many symptoms of melanoma and nonmelanoma skin cancer, so it’s important to get screened regularly.
The number of childhood cases of melanoma has remained relatively stable, though, because the incidence of the disease is low. A significant number of people with skin cancer in their families have a genetic mutation that makes their skin more susceptible to the disease. These genes also affect the immune system, which reduces the body’s ability to repair damaged skin cells. In addition, the skin tone of the patient can influence risk. Fair-skinned people have less melanin than those with dark skin.
Arsenic exposure also increases your risk of developing skin cancer. Exposure to sunrays increases the risk of developing basal cell carcinomas and squamous cell carcinomas. The risk of developing skin cancer is highest among people living in areas with high levels of sunlight and in tropical regions. Recreational suntanning should be avoided. In addition, sunscreen that contains SPF 30 and is broad-spectrum is also recommended. Further, you should inspect your skin regularly. If you notice any changes, contact a dermatologist for a diagnosis.
The most common types of skin cancer are nonmelanoma, basal cell carcinoma, and squamous cell carcinoma. Basal cell carcinomas are relatively easy to treat and may be curable. In contrast, melanoma is more difficult to treat and may spread to nearby tissues. If diagnosed early, however, most basal cell carcinomas can be cured. Getting early treatment is essential to maximizing a patient’s chance of survival.
