Melanoma

Melanoma's genetic trajectories are charted in new study

An international team of scientists led by UC San Francisco researchers has mapped out the genetic trajectories taken by melanoma as it evolves from early skin lesions, known as precursors, to malignant skin cancer, which ...

Nov 11, 2015
popularity642 comments 0

Melanoma i/ˌmɛləˈnoʊmə/ (from Greek μέλας - melas, "dark") is a malignant tumor of melanocytes. Melanocytes are cells that produce the dark pigment, melanin, which is responsible for the color of skin. They predominantly occur in skin, but are also found in other parts of the body, including the bowel and the eye (see uveal melanoma). Melanoma can occur in any part of the body that contains melanocytes.

Melanoma is less common than other skin cancers. However, it is much more dangerous and causes the majority (75%) of deaths related to skin cancer. Worldwide, doctors diagnose about 160,000 new cases of melanoma yearly. The diagnosis is more frequent in women than in men and is particularly common among Caucasians living in sunny climates, with high rates of incidence in Australia, New Zealand, North America, Latin America, and northern Europe. According to a WHO report, about 48,000 melanoma related deaths occur worldwide per year.

The treatment includes surgical removal of the tumor, adjuvant treatment, chemo- and immunotherapy, or radiation therapy. The chance of a cure is greatest when the tumor is discovered while it is still small and thin, and can be entirely removed surgically.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

Knowing one's place in a social hierarchy

When you start a new job, it's normal to spend the first day working out who's who in the pecking order, information that will come in handy for making useful connections in the future. In an fMRI study published December ...

Deep brain stimulation may not boost memory

Deep brain stimulation (DBS) of areas in the brain known to be involved in making memories does not improve memory performance, according to a study by Columbia University researchers published December 7 in Neuron. The study ...

TET proteins drive early neurogenesis

The fate of stem cells is determined by series of choices that sequentially narrow their available options until stem cells' offspring have found their station and purpose in the body. Their decisions are guided in part by ...