title: Monoclonal IgG immunoglobulinemia in psoriatic arthritis.
abstract: A 57-year-old man with skin psoriasis and psoriatic arthropathy, in whom an IgG-K monoclonal immunoglobulin was identified, is reported. A 7-year follow-up did not disclose any evidence of malignancy. The significance of this unusual occurrence is described.
mesh_terms: D001168:Arthritis / Q000150:complications*; D001797:Blood Protein Electrophoresis; D006801:Humans; D006942:Hypergammaglobulinemia / Q000150:complications*; D007122:Immunoelectrophoresis; D007074:Immunoglobulin G; D008297:Male; D008875:Middle Aged; D011565:Psoriasis / Q000150:complications*
chemical_list: D007074:Immunoglobulin G