Skin cancer develops in skin cells, which is the largest organ in the human body. The skin protects our internal organ injuries, infections, heat and ultraviolet radiation emitted by the sun. It helps control body temperature and elimination of waste through sweat glands. It is also used to synthesize vitamin D and to store water and fat.

The skin is mainly composed of two layers. The surface layer is called epidermis, that is below the epidermis is the dermis. The epidermis contains three cell types:

• The basal cells are in constant training at the base of the epidermis. The new round basal cells push older cells toward the surface of the skin, where they become squamous cells.
• The squamous cells are old cells. As they rise to the surface of the skin, thinning while they flatten.
• Melanocytes are also present at depth in the epidermis between the basal cells. Melanocytes are the cells that make melanin, responsible for skin color.

In the dermis there are nerves, blood vessels, sweat glands, sebaceous glands and hair follicles.

The two most common types of skin cancer are squamous cell carcinoma and basal cell carcinoma. Both variants are known as skin cancer other than melanoma and can usually be treated successfully.

• » Blog: Jersey Girl
• » I’m Not Lance!  A cancer experience & survival guide for mere mortals
• » Mesothelioma Prognosis
• » Where does Sarcoma cancer usually grow and progress?
• » A Breast Biopsy Risks