Somewhat more formally, for a set Ï of properties and relations, a Ï-representation of some structure X is a structure Y that is the image of X under a s homomorphism that preserves Ï. The label representation is sometimes also applied to the homomorphism itself.
Melanoma. This cancer begins in the melanocytes, the cells that provide the skinâs color. Melanoma is one of the deadliest forms of skin cancer because it can spread rapidly inside the body. Approximately one American dies from melanoma every hour.
As a fast spreading cancer, this can quickly move into the surrounding skin and organs. Described as a cancer of the melanocytes (the cells which produce melanin: a pigment responsible for color in the skin), melanoma can actually start in many areas of the body. However, it is predominantly found in the skin.