Cutaneous Immunoglobulin G4-Related Systemic Disease

Immunoglobulin G4-related systemic disease is a fibroinflammatory condition that has distinctive clinical findings, involves multiple organs, and has unique histopathology.1Smyrk T.C. The pathology of IgG4-related systemic disease.Curr Opin Rheumatol. 2011; 23: 56-63Crossref Scopus (80) Google Scholar Regardless of which organ(s) is involved, patients with immunoglobulin G4-related systemic disease have similar histopathologic features: a...