title: IgG4-related pleuritis with chylothorax.
abstract: Presently, 6 cases of IgG4-related pleuritis have been reported. We encountered a patient who developed chylothorax due to IgG4-related disease. To our knowledge, such patients have not been reported. This patient developed right-sided chylothorax and left-sided non-chylothorax lymphocyte-predominant pleuritis. Elevated serum and pleural IgG4 concentrations and histopathological analysis of pleural biopsy confirmed the diagnosis of IgG4-related pleuritis. Left-sided pleuritis improved with corticosteroid therapy, but right-sided chylothorax persists. IgG4-related disease can be one cause of chylothorax.
authors.affiliation: Department of Respiratory Medicine, Saitama Cardiovascular and Respiratory Center, Japan.
authors.forename: Eisuke
authors.initials: E
authors.lastname: Kato
authors.forename: Noboru
authors.initials: N
authors.lastname: Takayanagi
authors.forename: Takashi
authors.initials: T
authors.lastname: Ishiguro
authors.forename: Naho
authors.initials: N
authors.lastname: Kagiyama
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Shimizu
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Sugita
mesh_terms: D000368:Aged; D000888:Antibodies, Anti-Idiotypic / Q000097:blood / Q000276:immunology*; D001706:Biopsy; D002916:Chylothorax / Q000175:diagnosis / Q000209:etiology*; D003937:Diagnosis, Differential; D006801:Humans; D007074:Immunoglobulin G / Q000276:immunology*; D008297:Male; D010998:Pleurisy / Q000150:complications* / Q000175:diagnosis / Q000276:immunology; D013902:Radiography, Thoracic; D014057:Tomography, X-Ray Computed
chemical_list: D000888:Antibodies, Anti-Idiotypic; D007074:Immunoglobulin G