title: Chronic urticaria dnd vasculitis.
abstract: Of 231 patients with chronic urticaria, eight presented with arthritis. All had elevated sedimentation rates, five had depressed complement (CH50) and two elevated serum immune complexes (IC). Skin biopsies were abnormal in only four patients, unrelated to abnormalities of CH50 or IC. No single diagnostic test was consistently abnormal.
mesh_terms: D000799:Angioedema / Q000150:complications / Q000276:immunology; D000936:Antigen-Antibody Complex; D001168:Arthritis / Q000150:complications / Q000276:immunology; D002908:Chronic Disease; D003167:Complement Activation; D003165:Complement System Proteins / Q000172:deficiency; D006801:Humans; D012867:Skin / Q000473:pathology; D014581:Urticaria / Q000150:complications* / Q000276:immunology; D014657:Vasculitis / Q000150:complications* / Q000276:immunology
chemical_list: D000936:Antigen-Antibody Complex; D003165:Complement System Proteins