title: Radiological findings and clinical features of thoracic immunoglobulin G4-positive plasma cell granuloma: two cases.
abstract: Plasma cell granulomas, inflammatory pseudotumours and myofibroblastomas are synonymous with characteristic plasma cell infiltration in various body organs including the pancreas, liver, retroperitoneum and mediastinal structures causing idiopathic fibrosclerosis. Recently, a new concept has arisen regarding the relationship between immunoglobulin (Ig)G4-positive cell infiltration and idiopathic systemic fibrosclerosis. We report two cases showing IgG4-positive cell infiltration in the lung presenting as lung nodules with or without extrapulmonary manifestations.
authors.affiliation: Department of Radiology, University of Ulsan College of Medicine, Songpa-gu, Seoul, Korea.
authors.forename: C S
authors.initials: CS
authors.lastname: Lee
authors.forename: J-W
authors.initials: JW
authors.lastname: Song
authors.forename: E J
authors.initials: EJ
authors.lastname: Chae
authors.forename: C W
authors.initials: CW
authors.lastname: Lee
authors.forename: K-H
authors.initials: KH
authors.lastname: Do
authors.forename: J B
authors.initials: JB
authors.lastname: Seo
authors.forename: M Y
authors.initials: MY
authors.lastname: Kim
authors.forename: J S
authors.initials: JS
authors.lastname: Lee
authors.forename: K-S
authors.initials: KS
authors.lastname: Song
mesh_terms: D000328:Adult; D001706:Biopsy / Q000379:methods; D003937:Diagnosis, Differential; D005260:Female; D006104:Granuloma, Plasma Cell / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood*; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology*; D008171:Lung Diseases / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D008875:Middle Aged; D012598:Sclerosis; D014057:Tomography, X-Ray Computed / Q000379:methods
chemical_list: D007074:Immunoglobulin G