Mikulicz’s disease with immune thrombocytopenia: A new immunoglobulin G4-mediated disorder and literature review

Abstract

Mikulicz’s disease (MD), an immunoglobulin G4 (IgG4)-related disease, is a fibrosis-associated inflammatory disease characterized by painless bilateral swelling of lacrimal and salivary glands. Although thrombocytopenia is associated with many rheumatologic disorders, it is rare in IgG4-related MD. This novel study aims to report a rare case of IgG4-related MD complicated with severe autoimmune thrombocytopenia without any hematological malignancies and review all cases of IgG4-related disease associated with thrombocytopenia in the literature.