RT Book, Section A1 Bongartz, Timothy A1 Dingle, Jodi A. A2 Knoop, Kevin J. A2 Stack, Lawrence B. A2 Storrow, Alan B. A2 Thurman, R. Jason SR Print(0) ID 1181053141 T1 Inflammatory Myopathies T2 The Atlas of Emergency Medicine, 5e YR 2021 FD 2021 PB McGraw-Hill PP New York, NY SN 9781260134940 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181053141 RD 2024/10/05 AB Muscle weakness, not pain, is the hallmark feature of inflammatory myopathies. In polymyositis and dermatomyositis, the muscle weakness is typically proximal and symmetric. Inclusion body myositis can present with more distal end asymmetric muscle involvement.