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.
Melanoma What is Melanoma? Melanoma is a malignant tumor that originates in melanocytes, the cells that produce the pigment melanin that colors our skin, hair, and eyes. The majority of melanomas are black or brown. However, some melanomas are skin-colored, pink, red, purple, blue or white. Is Melanoma Fatal? Malignant Melanoma is the most serious form of skin cancer. However, if it is recognized and treated early, it has a high cure rate. If not treated early, or if it is a high risk melanoma, the cancer can advance and spread to other parts of the body. Malignant Melanoma is very hard to treat and often fatal. The American Cancer Society estimates that in 2011, there will be approximately 9000 fatalities in the US, with 70% of these occurring in men.