一般认为,肿瘤的不同组织学所见与肿瘤的发生部位有关,即肿瘤组织学改变主要由发生的母细胞的性状所决定。但是近年来,从实验性肺肿瘤的组织学所见表明,致癌物质的接触剂量与肿瘤的组织学类型的表现有密切关系。现就国内外有关对肺 It is generally believed that the different histological findings of tumors are related to the location of the tumor, ie the histological changes of the tumor are mainly determined by the nature of the occurring parent cells. However, in recent years, the histological findings of experimental lung tumors have shown that the contact dose of carcinogens is closely related to the histological type of tumors. Now on the lungs at home and abroad