title: Retroperitoneal fibrosis as the presenting manifestation of IgG4-related disease in a patient previously diagnosed with granulomatosis with polyangiitis (Wegener's): one disease or two?
authors.affiliation: Department of Rheumatology C, Odense University Hospital , Odense , Denmark.
authors.forename: N
authors.initials: N
authors.lastname: Lomborg
authors.forename: N
authors.initials: N
authors.lastname: Marcussen
authors.forename: P
authors.initials: P
authors.lastname: Junker
mesh_terms: D000368:Aged; D014890:Granulomatosis with Polyangiitis / Q000175:diagnosis* / Q000276:immunology; D006801:Humans; D007074:Immunoglobulin G / Q000276:immunology*; D008297:Male; D012185:Retroperitoneal Fibrosis / Q000175:diagnosis* / Q000276:immunology
chemical_list: D007074:Immunoglobulin G