血小板增多症罕见发生，而且往往自发性。
通常，反应性血小板增多症不一定需要治疗。
Often, no treatment is required or necessary for reactive thrombocytosis.
特发性血小板增多症可能发生在生育年龄的女性。
Essential thrombocythemia (ET) may occur in women of childbearing age.
血小板疾病是定量的(血小板减少症或血小板增多症)或是定性的(血小板病)。
Platelet disorders are either quantitative (thrombocytopenia or thrombocytosis) or qualitative (thrombocytopathy).
过量使用治疗血小板减少症的药物，如血小板生长因子，也会导致血小板增多症。
Over-medication with drugs that treat thrombocytopenia, such as eltrombopag or romiplostim, may also result in thrombocytosis.
目的探讨急性白血病合并严重血小板增多症的细胞遗传学特点及其临床和实验室特征。
Objective To investigate the cytogenetic features as well as clinical and laboratory criteria of acute leukemia complicated with severe thrombocytosis.
方法需行脾切除术的患者2 0例，包括肝硬化继发性脾亢4例，脾假性囊肿1例，遗传性球形细胞增多症1例，原发性血小板减少性紫癜14例。
Methods 20 cases underwent splenectomy, including 4 cases of hypersplenism secondary to hepatic cirrhosis, 1 case of pseudocyst of spleen, 14 cases of primary thrombocytopenic purpura.
方法需行脾切除术的患者2 0例，包括肝硬化继发性脾亢4例，脾假性囊肿1例，遗传性球形细胞增多症1例，原发性血小板减少性紫癜14例。
Methods 20 cases underwent splenectomy, including 4 cases of hypersplenism secondary to hepatic cirrhosis, 1 case of pseudocyst of spleen, 14 cases of primary thrombocytopenic purpura.
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