Melanoma: Clinical OncologyAbout This Hardback Melanoma is a type of skin cancer which develops from the pigment producing cells, called melanocytes. It usually occurs in the skin, but can also appear in the mouth, intestines or the eye. Melanoma can also develop from moles on the body. Increase in the size of moles, irregular edges, change in color, itchiness, or skin breakdown are some of the prominent symptoms of melanoma. Exposure to ultraviolet light is the primary cause