IgG4-Related Disease

IgG4-related disease has been identified in various organs, but whether or not there are organ-specific characteristics related to the etiologic factors is still unknown. Here, we carried out a cross-sectional study of 114 patients with IgG4-related disease. On the basis of the location of the lesions, the patients were classified into 5 groups: head and neck (n=23), thoracic (n=16), hepatic and pancreatobiliary (n=27), retroperitoneal (n=13),...