IGHE and immunoglobulin G4-related sclerosing disease: IgG4 levels were >1.35 g/l (mean 7.9 ± 6.1 g/l) in 82% of patients with IgG4-RD, median IgE level was 627 ± 1,092 UI/l and median eosinophil count 443 ± 499 cells/μl (19% of patients had >500 cells/μl) in IgG4-RD patients.