What causes Kaposi sarcoma (KS)?

Updated: Apr 11, 2019
  • Author: Jessica Katz, MD, PhD, FACP; Chief Editor: Edwin Choy, MD, PhD  more...
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Etiologic factors include the following:

  • Coinfection with HIV and HHV-8 (Kaposi sarcoma-associated herpesvirus [KSHV])

  • Iatrogenic immunosuppression (including corticosteroids)

  • Elevated degree of expression of numerous cytokines and angiogenic growth factors, including tumor necrosis factor alpha, interleukin-6, basic fibroblast growth factor, HIV-tat protein, and oncostatin M

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