Fig. 3
From: Rosai–Dorfman disease mimicking IgG4-related diseases: a single-center experience in China
Histopathology results of IgG4-RD, RDD mimic IgG4-RD and RDD patients. RDD total includes all the patients in RDD group and RDD mimic IgG4-RD group. Chi square test was performed between RDD total group and IgG4-RD group. a In RDD total group and IgG4-RD group, patients that have a histopathology result with different numbers of IgG4+ plasma cells/hpf are represented with colors of different grey levels. 4 colors from dark to light: percentage of patients with a histopathology result of > 100 IgG4+ plasma cells/hpf; > 50 and ≤ 100 IgG4+ plasma cells/hpf; > 10 and ≤ 50 IgG4+ plasma cells/hpf; ≤ 10 IgG4+ plasma cells/hpf. b In RDD total group and IgG4-RD group, patients with different ratios of IgG4/IgG in tissue in histopathology analysis are represented with colors of different grey levels. 3 colors from dark to light: percentage of patients with a ratio of IgG4/IgG > 40; with a ratio of IgG4/IgG > 10 and ≤ 40; with a ratio of IgG4/IgG ≤ 10.