This video tells us about the inflammatory type of muscular disease known as Myositis. Myositis means inflammation of the muscles that you use to move your body. An injury, infection, or autoimmune disease can cause it. The video covers types of myositis, rate of occurrence, polymyositis, types of inflammation and treatment prognosis. TIMELINE: 0:04 Introduction 0:28 Types of myositis 0:45 Rate of occurrence 1:11 Polymyositis 1:45 Dermatomyositis 3:35 Adenomatopathy 4:29 Necrotizing myopathy 6:01 Diagnosis by enzyme concentration 7:00 Treatment 7:38 Corticosteroid therapy 8:24 Intravenous immunoglobulins therapy 9:12 End