About The Medical Condition Polymyositis, Idiopathic
Find the definition of the medical term Polymyositis, Idiopathic. Polymyositis, Idiopathic defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Polymyositis, Idiopathic
Polymyositis, Idiopathic Medical Condition |
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What's The Definition Of The Medical Condition Polymyositis, Idiopathic?
Diseases characterized by inflammation involving multiple muscles. This may occur as an acute or chronic condition associated with medication toxicity (DRUG TOXICITY, NERVOUS SYSTEM); CONNECTIVE TISSUE DISEASES; infections; malignant NEOPLASMS; and other disorders. The term polymyositis is frequently used to refer to a specific clinical entity characterized by subacute or slowly progressing symmetrical weakness primarily affecting the proximal limb and trunk muscles. The illness may occur at any age, but is most frequent in the fourth to sixth decade of life. Weakness of pharyngeal and laryngeal muscles, interstitial lung disease, and inflammation of the myocardium may also occur. Muscle biopsy reveals widespread destruction of segments of muscle fibers and an inflammatory cellular response. (Adams et al., Principles of Neurology, 6th ed, pp1404-9)
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