肿瘤异质性 (ｈｅｔｅｒｏｇｅｎｅｉｔｙ)是指肿瘤性质上的多样性。异质性对于解释肿瘤基础研究及临床研究中出现的许多疑问具有重要意义。有关肿瘤异质性的研究 ,已经从肿瘤病理学深入到细胞生物学 ,分子生物学 ,分子遗传学 ,分子病理学等方面。肺癌异质性较为明显 ,一直是讨 Heterogeneity refers to the diversity of the nature of the tumor. Heterogeneity is important for explaining many of the questions that arise in basic tumor research and clinical research. Research on tumor heterogeneity has gone from tumor pathology to cell biology, molecular biology, molecular genetics, and molecular pathology. The heterogeneity of lung cancer is more obvious and has been discussed