Figure 3.
Constituent ratio of organ involvement in IgG4-RD patients. Organ involvements were classified according to different anatomic sites: superficial gland swelling, retroperitoneum/mediastinum involvement, hepatobiliary-pancreatic involvement, urinary system involvement, central nervous system involvement, respiratory system involvement, gastrointestinal involvement, and regional and/or systemic lymphadenopathy. The constituent ratio of different types of organ involvement in IgG4-RD patients is summarized in a pie chart. IgG4-RD: Immunoglobulin G4-related disease.