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Myositis is a rarely-encountered medical condition characterized by inflammation affecting the muscles. [2] The manifestations of this condition may include skin issues, muscle weakness , and the potential involvement of other organs. [ 3 ]
Polymyositis and the associated inflammatory myopathies have an associated increased risk of cancer. [3] The features they found associated with an increased risk of cancer were older age, age greater than 45, male sex, difficulty swallowing, death of skin cells, cutaneous vasculitis, rapid onset of myositis (<4 weeks), elevated creatine kinase, higher erythrocyte sedimentation rate and higher ...
It can also be associated with underlying cancer. The main classes of idiopathic inflammatory myopathy are polymyositis (PM), dermatomyositis (DM) (including juvenile, amyopathic, and sine-dermatitis form), inclusion-body myositis (IBM), immune-mediated necrotising myopathy (IMNM), and focal autoimmune myositis. [1]
Although they vary in particulars, polymyositis, dermatomyositis and inclusion body myositis are idiopathic inflammatory myopathies (IIM) [1] primarily characterized by chronic inflammation of human skeletal muscle tissue [2] that ultimately causes the necrosis of muscle cells. This degeneration leads to muscle tissue wasting, weakness and ...
in 1957 Lundberg reported on a group of patients with a condition he named myalgia cruris epidemica, [7] seemingly the first description of BACM. Other terms later used include influenza-associated myositis, viral myositis, acute myositis [2] Middleton and colleagues reported on BACM as severe myositis after influenza in 1970. [8]
Pyomyositis is mainly a disease of children and was first described by Scriba in 1885. Most patients are aged 2 to 5 years, but infection may occur in any age group. [6] [7] Infection often follows minor trauma and is more common in the tropics, where it accounts for 4% of all hospital admissions.
The Alarcón-Segovia criteria require serological criteria and at least three clinical criteria including either synovitis or myositis to qualify for a diagnosis of MCTD. [69] It has a sensitivity of 62.5% and a specificity of 86.2%. [31] Serological criteria: [69] Anti-RNP antibody titer N 1:1000; Clinical criteria: [69] Edema in hands ...
Proliferative fasciitis and proliferative myositis (PF/PM) are rare benign soft tissue lesions (i.e. a damaged or unspecified abnormal change in a tissue) that increase in size over several weeks and often regress over the ensuing 1–3 months. [1] The lesions in PF/PM are typically obvious tumors or swellings.