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Cancer is caused when the normal mechanisms that control cell growth become disturbed, causing cells to grow and divide without stopping. This is usually the result of damage to the genetic material of the cell (deoxyribonucleic acid, or DNA). The...
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Human papilloma viruses (HPV) are a large group or related viruses, some of which play a part in the development Transmission electron micrograph of human papilloma virus, magnified 40,000 times. HPV is the cause of warts, including genital warts,...
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Metastasis is the movement or spreading of cancer cells from one organ or tissue to another. Cancer cells usually spread through the bloodstream or the lymph system.
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The ability to invade and metastasize are the defining characteristics of a cancer. Invasion refers to the ability of cancer cells to penetrate through the membranes that separate them from healthy tissues and blood vessels. Metastasis can refer e...
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