Of 51 PBC cases,AMA-M2 positive rate was 100%,ANA positive rate was 62.7%(32/51),Nuclear membrane and nuclear dots were two main fluorescent patterns of ANA.

• PBC患者的AMA-M2抗体均为阳性；ANA阳性32例占62.；7%25。 ANA的主要荧光模式为核膜型和核点型。