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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > animal and human health > diseases and disorders (animals and humans) > musculoskeletal diseases > muscular diseases > myositis > polymyositis
Animals, Livestock, One Health > animal and human health > diseases and disorders (animals and humans) > musculoskeletal diseases > muscular diseases > myositis > polymyositis
Preferred Term:

polymyositis

Definition:
Diseases characterized by inflammation involving multiple muscles. This may occur as an acute or chronic condition associated with medication toxicity; 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.
Concept Schemes:
NALT Full
Broader Concept:
myositis
Entry Terms:
  • multiple myositis
  • idiopathic myositis
  • polymyositis ossificans
URI:
https://lod.nal.usda.gov/nalt/154501
Download this Concept:
RDF/XMLCreated 2012-03-27, last modified 2013-02-14