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caused by DNA mutations
The term '''cancer''' refers to many different diseases. They all have in common uncontrolled ''cell [[proliferation]]'' (growth and division). Cancers are usually named for the organ or cell type that is originally involved. After beginning at one site, cancer may ''metastasize'' (spread) to other organs. The cancer is still named by its place of origin.
The term '''cancer''' refers to many different diseases. They all have in common uncontrolled ''cell [[proliferation]]'' (growth and division). Cancers are usually named for the organ or cell type that is originally involved. After beginning at one site, cancer may ''metastasize'' (spread) to other organs. The cancer is still named by its place of origin.
"All known cancer-inducing agents — certain chemicals and viruses and ionizing radiation — act by breaking chemical bonds to produce [[DNA]] [[mutations]]." [http://www.livescience.com/health/cell-phone-radiation-cancer-100118.html]
==Types of Cancer==
==Types of Cancer==