肝衰竭分为慢性和暴发性两类。慢性肝衰竭的病因主要是失代偿性肝硬化和晚期肝癌等;暴发性肝衰竭(FHF)的病理基础则分三型: (一)急性大块肝坏死(坏死型):最主要的病因是暴发性病毒性肝炎,甲型、乙型、非甲非乙型皆可引起。其中乙型最常见,与病毒诱发的免疫反应有关;甲型较少见,与肝细胞过量病毒感染有关。柯萨奇B型病毒和EB病毒等偶可引起暴发性肝 Liver failure is divided into two types of chronic and fulminant. The causes of chronic liver failure are mainly decompensated cirrhosis and advanced liver cancer; pathological basis of fulminant hepatic failure (FHF) is divided into three types: (A) of acute liver necrosis (necrosis): the most important cause Is fulminant viral hepatitis, A, B, non-B non-B can cause. Of which B is the most common, and the virus-induced immune response; A less common, and liver cells over the virus infection. Coxsackie virus B and Epstein-Barr virus can even cause fulminant liver