Polymyositis (PM) is mainly seen in adults, but rare in children.PM often has a subacute onset, with symmetrical proximal muscle weakness of the extremities occurring within weeks to months, and…
Polymyositis is an autoimmune disease with muscle weakness and myalgia as the main manifestations. It mainly affects the limb band muscles, cervical muscles, and throat muscles. The main symptoms are…
Dermatomyositis (DM) / polymyositis (PM), is an autoimmune disease whose cause is still unknown. The main pathological changes are non-specific inflammation of the skin and muscles, resulting in diffuse edematous…
Polymyositis and dermatomyositis PM/DM are autoimmune inflammatory myopathies, a group of connective tissue diseases with chronic, nonsuppurative inflammatory lesions of the transverse muscle or with characteristic skin changes. The main…
Inclusion body myositis, toxic myopathy, necrotizing myopathy and myotonic dystrophy should be excluded in the diagnosis of polymyositis, because the Bohan diagnostic criteria do not distinguish polymyositis from these diseases. 2,…
Simple polymyositis is a diffuse non-suppurative inflammatory disease of the transverse muscle characterized by symmetrical weakness of the proximal muscles of the extremities, cervical muscles, pharyngeal muscles, muscle induration, and…
The clinical characteristics of Polymyositis (PM) and Dermatomyositis (DM) are non-purulent inflammatory myopathies of skeletal muscles, PM refers to no skin damage, such as myositis with rash is called DM.…
1.Overview Idiopathic inflammatory myopathies (IIM) are a heterogeneous group of diseases with prominent muscle involvement of the proximal extremities. Among them, polymyositis (PM) and dermatomyositis (DM) are the most common. The…
Dermatomyositis is a non-purulent inflammatory lesion involving mainly the transverse muscles with a lymphocytic infiltrate and may or may not be associated with a variety of skin lesions. It is…
Polymyositis and dermatomyositis PM/DM are autoimmune inflammatory myopathies, a group of connective tissue diseases with chronic, nonsuppurative inflammatory lesions of the transverse muscle or with characteristic skin changes. The main…