Otologic Manifestation in IgG4-Related Systemic Disease
IgG4-related systemic disease, including autoimmune D-Mannose pancreatitis, is a multi-organ disorder characterized by elevated serum immunoglobulin G4 (IgG4) concentration and IgG4-positive plasma cell infiltration.We report a case of a 66-year-old woman with IgG4-related hearing disorder, presenting with fluctuating mixed hearing loss with middle