Abstract
Idiopathic inflammatory myopathies (IIM), also referred to as "myositis," are a group of heterogeneous autoimmune disorders characterised by muscle weakness, atrophy and progressive reduced mobility (Lundberg etal, 2021). IIM represent a significant health burden in adult populations, affecting individuals at a mean ageof 50 with an estimated prevalence of 2.9-34 per 100,000 (Dobloug etal, 2015; Svensson etal, 2017). IIM encompass several subtypes including dermatomyositis, immune-mediated necrotising myopathy, inclusion-body myositis, antisynthetase syndrome and polymyositis, which are characterised by specific clinical features, histopathological findings and autoantibody status (Pinal-Fernandez etal, 2020).
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