在慢性乙型和丙型肝炎的临床表现中,我们可以看到病人除了常见的与肝脏相关的临床表现外,还有许多其他系统的肝外表现,被称为肝外综合征(extrahepaticsyn-dromes)。由于所涉及的研究包括病人数量的不同和对照设立的不同,肝外表现的临床发生率差别较大。2005年法国7个中心报道慢 In the clinical manifestations of chronic hepatitis B and C, we can see that in addition to the common liver-related clinical manifestations of patients, there are many extrahepatic manifestations of other systems known as extrahepaticsyn-dromes ). The clinical incidence of extrahepatic manifestations varies widely depending on the number of patients involved and the controls established. Seven French centers reported slow in 2005