释义 n. [外科] 多肌炎
例句 The Clinical Manifestations of polymyositis and dermatomyositis vary greatly. It is more difficult to distinguish the mild cases from others.多发性肌炎、皮肌炎的临床表现多样化，尤其对于轻型患者鉴别诊断更加困难。
一种新的多发性肌炎体外模型揭示CD8 + T细胞侵入肌细胞及其细胞毒作用
作者： Kamiya M
PM is a subacute inflammatory myopathy, its primary clinical feature being manifested as proximal muscle weakness. The histopathological features in PM include necrotic and regenerating muscle cells and mononuclear inflammatory cell infiltrates, which are predominantly CD8+ T cells in the endomysial area of the skeletal muscles. Some CD8+ T cells are observed in non-necrotic muscle cells as a characteristic finding of PM. CD8+ T cells in non-necrotic muscle cells are also observed in other forms of idiopathic inflammatory myopathy, including IBM and DM, and thus are not specific to PM. Nevertheless, it is useful to distinguish inflammatory myopathies from other types of myopathies such as dystrophic, metabolic, mitochondrial and toxic myopathies.