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液态肿瘤以不定形地存在于血液系统中为其特征,它包括各种急慢性白血病、真性红细胞增多症、血小板增多症等。这类肿癌恶性度高,对机体危害大,如不及时治疗,常可在短期内导致死亡。近年来,由于抗代谢药物的应用,该类患者的症状显著缓解。缓解期延长,取得了较好的疗效。但抗代谢疗法在取得治疗效果的同时,常常伴有比较严重的副作用,突出的是各种正常血细胞数量大大减少,患者抗病能力及抗体状态大大下降,有些患者甚至因感染、出血及全身衰竭而死亡。抗代谢疗法的缺陷是治疗的特异性
Liquid tumors are characterized by their presence in the blood system in an amorphous form. They include various acute and chronic leukemias, polycythemia vera, and thrombocytosis. This kind of swollen cancer has a high degree of malignancy and is harmful to the body. If it is not treated in time, it can often lead to death in the short term. In recent years, due to the use of anti-metabolic drugs, the symptoms of these patients have been significantly relieved. The remission period has been extended and good results have been achieved. However, anti-metabolic therapies often have more serious side effects while achieving therapeutic effects. What is remarkable is that the number of various normal blood cells is greatly reduced, and the patient’s disease resistance and antibody status are greatly reduced. Some patients even suffer from infection, bleeding, and systemic failure. And died. The drawback of antimetabolite therapy is the specificity of the treatment