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Skin cancer is a condition in which the skin cells grow abnormally. While commonly found in areas of the skin that get a lot of sun, skin cancer can also happen in places that do not get a lot of sun. There are many types of skin cancer but the most common are basal cell carcinoma, squamous cell carcinoma and melanoma. As with all cancers, skin cancer should be taken seriously. While the five-year survival rate for some skin cancers is quite high, early detection is essential to the success of a case.
There are several skin cancer types that a doctor might diagnose as a result of a skin biopsy.
There are two different types of pre-skin cancers. If left untreated, these lesions have the potential to turn into skin cancer.
Moles or nevi are very common and a person can get new ones through early adulthood. All of these moles fall on a spectrum from being normal (no or minimal chance of turning into a skin cancer) to melanoma (see description below). On that spectrum are mild, moderate and severely dysplastic nevi which can be thought of as precancerous moles or a marker of an increased risk for melanoma. Since early detection is paramount in detecting melanoma, it is important to have regular skin checks with your provider as well as perform frequent self skin checks to monitor for any changes in your moles.
Persistent rough, scaly spots that appear on sun exposed areas due to years of sun exposure. A small percentage of these lesions left untreated can develop into skin cancer, especially squamous cell carcinoma.
There are three common types of skin cancers.
This is the most common of all skin cancers. It tends to be slow growing and frequently appears as a pinkish, translucent, pearly bump or red, scaly patch that does not heal on its own, bleeds easily or increases in size.
This cancer usually grows faster than a BCC and can rarely spread locally. It resembles a new wart-like growth that may be painful, increasing in size or bleeding easily.
While this is the least common skin cancer, it is the most dangerous due to its ability to spread. If detected early, melanoma can be completely cured. If left untreated, melanoma can spread to the lymph nodes, lungs, liver and brain.
There are a number of signs of skin cancer. These can vary based on the type of skin cancer involved.
Skin cancer can be caused by exposure to UV radiation found in sunlight and tanning beds, as well as by exposure to toxins or having an immune condition. There are many risk factors associated with an increased chance of developing skin cancer, including: