Skin Cancer »
Introduction
Skin cancer is the most common form of human cancer. It is estimated that
over 1 million new cases occur annually. The annual rates of all forms of skin
cancer are increasing each year, representing a growing public concern. It has
also been estimated that nearly half of all Americans who live to age 65 will
develop skin cancer at least once.
The most common warning sign of skin cancer is a change in the appearance of
the skin, such as a new growth or a sore that will not heal.
The term "skin cancer" refers to three different conditions. From
the least to the most dangerous, they are:
- basal cell carcinoma (or basal cell carcinoma
epithelioma)
- squamous cell carcinoma (the first stage of which is called actinic keratosis)
- melanoma
The two most common forms of skin cancer are basal cell carcinoma and
squamous cell carcinoma. Together, these two are also referred to as non...
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