A backfire is when the ignition of fuel doesn't take place in the ignition/combustion chamber, it(a backfire) can take place in the intake or exhaust. It can â¦ be caused by a fuel to air ratio not being correct, also if the timing of the spark is not just right that could cause it to back fire.
Melanoma in the United States. From 2005 to 2009, the median age at diagnosis for melanoma of the skin was 61, and the median age at death was 68. The age-adjusted incidence rate was 21.0 per 100,000 men and women per year.
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.