Kaposi's sarcoma is a rare type of cancer caused by a virus. It can affect the skin and internal organs.

It's mainly seen in people with a poorly controlled or severe HIV infection. It canalso affect some people who have a weakened immune system for another reason, as well as people who havea genetic vulnerability to the virus.

SeeWhat causes Kaposi's sarcoma?for more information.

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Medically Reviewed by a doctor on 2 Jun 2016