Kaposi's sarcoma (KS) is a kind of sarcoma caused by a herpesvirus infection in which cancerous cells, as well as abnormal growth of blood vessels, form solid lesions in connective tissue. KS was historically very rare and found mainly in older men of Mediterranean or African origin (classic KS) or patients with severely weakened immune systems, such as after an organ transplant (immunosuppressive treatment related KS). However, in the early 1980s a more aggressive form, epidemic KS, began ...
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Kaposi's Sarcoma Organizations