Immunoglobulin G4‐related lung disease: Clinicoradiological and pathological features

Background and objective Immunoglobulin G4 ( IgG4 )‐related disease is a multi‐organ disorder that can include the lungs. IgG4 ‐related lung disease can present in various forms; the clinical, radiological and pathological features of patients with this disease have been assessed. Methods Forty‐eight patients suspected of having IgG4 ‐related lung disease, with a high serum concentration of IgG4 and abundant IgG4 ‐positive plasma cell...