Idiopathic thrombocytopenia purpura (ITP) is an autoimmune disease which is characterized by destruction of platelets by macrophages in the reticuloendothelial system.

• 特发性血小板减少性紫癜(ITP)是以血小板在网状内皮系统中被巨噬细胞过度破坏为特征的自身免疫性疾病。