Cossermelli W, Friedman H, Pastor E H, Nobre M R, Manzione A, Camargo M E, Shiroma M
Ann Rheum Dis. 1978 Jun;37(3):277-80. doi: 10.1136/ard.37.3.277.
Polymyositis marked the clinical onset of Chagas's disease in a patient with rheumatoid arthritis. This is unusual, although clinically unimportant muscle involvement in trypanosomiasis has been described. The plasma cell infiltrate and vascular deposition of IgM and C3 suggest that the humoral immune system may play a role in the pathogenesis of chagasic polymyositis. It is not known whether the rheumatoid diseases predisposed to the polymyositis.
一名类风湿关节炎患者的恰加斯病临床发病表现为多发性肌炎。这种情况并不常见，尽管已有关于锥虫病中临床上无重要意义的肌肉受累的描述。浆细胞浸润以及IgM和C3的血管沉积表明，体液免疫系统可能在恰加斯病性多发性肌炎的发病机制中起作用。尚不清楚类风湿疾病是否易引发多发性肌炎。
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