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继发性血小板减少性紫癜按发病原理可分为血小板生成减少、血小板分布异常、血小板破坏过多和血小板被稀释。1血小板生成减少性血小板减少症特点是骨髓中巨核细胞数量减少,血小板产生数量和血小板更新率相应低下。1.1感染性血小板减少病毒感染可致血小板轻至中度减少,系因病毒抑制巨核细胞产生血小板,并使血
According to the pathogenesis of secondary thrombocytopenic purpura can be divided into reduced thrombocytopenia, abnormal platelet distribution, excessive platelet destruction and platelet dilution. A thrombocytopenia is characterized by a decrease in the number of megakaryocytes in the bone marrow, platelet production and platelet replacement rate correspondingly lower. 1.1 Infectious thrombocytopenia virus infection can cause mild to moderate reduction of platelets, due to inhibition of megakaryocytes by the virus to produce platelets, and blood