Fig. 4
From: Screening for IgG4-type anti-nuclear antibodies in IgG4-related disease
Subclass-based ANA test of a patient with Sjögren’s syndrome (SS #4) showing IgG4-type ANA. ANA patterns differed among IgG subclasses. Total IgG showed Speckled, while IgG2 showed Speckled + Cyto, IgG1 and IgG3 showed Nucleolar + Cyto (with atypical cytoplasmic spots), and IgG4 showed Peripheral. Bar = 20 μm. Cyto: cytoplasmic