Cancer that begins in the skin or in tissues that line or cover internal organs.
Small, round cells in the lower part (base) of the epidermis, the outer layer of skin.
Doctor with special training in diseases and conditions of the skin, hair and nails.
Thin, flat cells in the surface of skin, the lining of hollow organs in the body and the passages of the respiratory and digestive systems.
A form of skin cancer that begins in melanocytes (cells that make pigment). Usually begins as a mole.