Inflammatory myositis refers to a group of disorders affecting the muscles and may be associated with different causes such as infection, drug toxicity, trauma, and autoimmune diseases. The most prominent cause of myositis is an autoimmune disease, typically known as idiopathic inflammatory myopathy (IIM). The indication is subdivided into Polymyositis, Dermatomyositis, Inclusion body myositis (IBM), Immune-Mediated Necrotizing Myopathy (IMNM), Anti-synthetase syndrome (ASyS), and Overlapping myositis (OS).
Polymyositis, Dermatomyositis, and Inclusion body myositis were the only subcategories known for a long time. But with recent advancements and the broadening of...
