title: Monoclonal gammopathy in systemic lupus erythematosus.
abstract: In order to ascertain the incidence of monoclonal gammopathy (MG) in systemic lupus erythematosus (SLE), 120 SLE patients were evaluated. Four patients (3.3%), two of whom were under 50 years of age, were found to have a monoclonal immunoglobulin in their serum. Our data agree with the previous literature in demonstrating a higher incidence of MG in SLE patients in comparison with the general population. Neither the clinical importance nor the pathogenetic significance of this association is known.
authors.affiliation: Department of Internal Medicine, Hospital Vall d'Hebron, Universidad Autonoma de Barcelona, Spain.
authors.forename: J M
authors.initials: JM
authors.lastname: Porcel
authors.forename: J
authors.initials: J
authors.lastname: Ordi
authors.forename: C
authors.initials: C
authors.lastname: Tolosa
authors.forename: A
authors.initials: A
authors.lastname: Selva
authors.forename: A
authors.initials: A
authors.lastname: Castro-Salomo
authors.forename: M
authors.initials: M
authors.lastname: Vilardell
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007074:Immunoglobulin G / Q000097:blood; D007075:Immunoglobulin M / Q000097:blood; D007145:Immunoglobulin kappa-Chains / Q000097:blood; D008180:Lupus Erythematosus, Systemic / Q000150:complications* / Q000276:immunology; D008297:Male; D008875:Middle Aged; D010265:Paraproteinemias / Q000150:complications* / Q000276:immunology
chemical_list: D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007145:Immunoglobulin kappa-Chains