Fig. 1From: New biomarkers for the diagnosis of pleural effusionAccuracy of serum level of IgG4 in diagnosis of pleural effusion secondary to lymphoplasmacytic infiltration. At cutoff point > 152 mg/dl; IgG-4 had 100% sensitivity, and 94% specificity in diagnosis of pleural effusion secondary to IgG 4-related effusion with overall accuracy was 95.3% and area under the curveBack to article page