Table 1

Results of serological investigations

ANAPositive, speckled pattern, 1:2560 dilution
Rheumatoid factor192 IU/mL (0–0.29 IU/mL)
Anti-SS-APositive
Anti-SS-BPositive
Anti-SmithNegative
Anti-RNPNegative
Anti-JoNegative
Anti-SCLNegative
C3 (g/L)0.97 (0.90–1.80 g/L)
C4 (g/L)0.09 (0.10–0.40 g/L)
Anti-MPONegative
Anti-PR3Negative
Anti-GBMNegative
Anti-thyroid peroxidaseNegative
  • ANA, anti-nuclear antibody; anti-GBM, anti-glomerular basement membrane antibody; anti-MPO, anti-myeloperoxidase antibody; anti-PR3, anti-proteinase 3 antibody; anti-RNP, anti-ribonucleoprotein; anti-SCL, anti-topoisomerase; anti-SS-A, anti-Sjögren’s syndrome related antigen A; anti-SS-B, anti-Sjögren’s syndrome related antigen B; C3, Complement 3; C4, Complement 4.