Five patients were ANA positive at present,2 patients were SSA antibody positive,2 patients were anti-RNP antibody positive,and 2 patients were anti-Sm antibody positive.

• 抗核抗体阳性5例、抗SSA抗体阳性2例、抗核RNP抗体阳性2例、抗Sm抗体阳性2例。