PT - JOURNAL ARTICLE AU - Rendt, Karen TI - Inflammatory myopathies: Narrowing the differential diagnosis DP - 2001 Jun 01 TA - Cleveland Clinic Journal of Medicine PG - 505--519 VI - 68 IP - 6 4099 - http://www.ccjm.org/content/68/6/505.short 4100 - http://www.ccjm.org/content/68/6/505.full SO - Cleve Clin J Med2001 Jun 01; 68 AB - 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.