Idiopathic inflammatory myositis (IIM) is a group of rare connective tissue diseases (CTDs) characterised by muscular and extramuscular signs. in which lung involvement is a challenging issue. Interstitial lung disease (ILD) is the hallmark of pulmonary involvement in IIM. and causes morbidity and mortality. https://www.allfixelectricales.shop/product-category/fridge-fan-blade/