Angiogenesis is the process by which new blood vessels form within the body. In cancer, factors can be released that promote the formation of blood vessels in and around a tumor, supplying it with its own blood supply. The presence of these blood vessels is often correlated with a poor prognosis in patients with cancer. This animation describes the structure of these new blood vessels and some of the issues associated with tumor angiogenesis.Please visit our site for more information random42.com

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