Spontaneous regression of hepatocellular carcinoma: A mini-review

Table 2 Proposed factors of spontaneous regression of hepatocellular carcinoma

Tumor hypoxia	Immunological reactions
Tumor thrombosis of hepatic artery[13,20,36]	Abstinence from alcohol[12,46,47]
Tumor thrombosis of portal vein[13,20,23]	Abstinence from smoking[12]
Hepatic angiography[37]	Herbal medicines[11,25]
Tumor rapid growth[14,38,39]	Prolonged fever[26,48,49]
Hepatic arterioportal shunts[18]	Antidiabetics[50]
Massive gastrointestinal hemorrhage[40,41]	Vitamin K administration[51]
Hemodialysis[42,43]
Surgical invasion[44]