title: Inflammatory myopathies: narrowing the differential diagnosis.
abstract: Muscle weakness is a feature of numerous conditions, but the muscle weakness of inflammatory myopathies, especially polymyositis and dermatomyositis, is easy to differentiate by specific clinical, laboratory, electromyographic, and histological features.
authors.affiliation: Department of Rheumatic and Immunologic Diseases, Cleveland Clinic Foundation, OH 44195, USA. rendtk@ccf.org
authors.forename: K
authors.initials: K
authors.lastname: Rendt
mesh_terms: D001323:Autoantibodies / Q000032:analysis; D001706:Biopsy; D003402:Creatine Kinase / Q000097:blood; D003937:Diagnosis, Differential; D004576:Electromyography; D006801:Humans; D018482:Muscle, Skeletal / Q000473:pathology; D009220:Myositis / Q000145:classification / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy
chemical_list: D001323:Autoantibodies; D003402:Creatine Kinase