Figure 4From: Hyper-IgG4 disease: report and characterisation of a new disease Histopathology: IgG4 immunostaining (cases versus controls). Vertical axis (0–120) shows number of IgG4-positive plasma cells/high power field (see Methods for details). Histological data from salivary gland is positive control, (from previously reported study [3,4]).Back to article page