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| Evans' syndrome ： ウィキペディア英語版 |
Evans syndrome
Evans syndrome is an autoimmune disease in which an individual's antibodies attack their own red blood cells and platelets. Both of these events may occur simultaneously or one may follow on from the other.
Its overall pathology resembles a combination of autoimmune hemolytic anemia and idiopathic thrombocytopenic purpura.〔 Autoimmune hemolytic anemia is a condition in which the red blood cells that normally carry oxygen and carbon dioxide are destroyed by an autoimmune process. Idiopathic thrombocytopenic purpura is a condition in which platelets are destroyed by an autoimmune process. Platelets are a component of blood that contribute to the formation of blood clots in the body to prevent bleeding.
The syndrome was first described in 1951 by R. S. Evans and colleagues.〔
==Signs and symptoms==
It has been variously reported that between 10% and 23% of patients who have autoimmune hemolytic anemia, will also have thrombocytopenia and thus Evans syndrome. The two features may occur together or sequentially.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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