title: Contact granuloma annulare.
mesh_terms: D003877:Dermatitis, Contact / Q000209:etiology; D005260:Female; D006099:Granuloma / Q000139:chemically induced*; D006801:Humans; D008875:Middle Aged; D009532:Nickel / Q000506:poisoning*; D012871:Skin Diseases / Q000139:chemically induced*
chemical_list: D009532:Nickel