The major inflammatory myopathies of unknown cause.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003882:Dermatomyositis / Q000473:pathology; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D009132:Muscles / Q000473:pathology / Q000648:ultrastructure*; D009220:Myositis / Q000473:pathology*