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Risk factors of hepatocellular carcinoma

(globally, 3rd leading cause of cancer death, espec. in Africa & Asia)

  • Cirrhosis: present in 70–90% HCC cases
  • Infectious: HCV & HBV (~75%), HBV/HDV coinfection; HBV can cause HCC w/o cirrhosis
  • Toxic: EtOH (⅓ cases in U.S.), tobacco, aflatoxin from Aspergillus
  • Metabolic disorders: NASH, diabetes mellitus, autoimmune hepatitis, hemochromatosis