肺癌的组织学类型的划分应对组织形态学,临床诊断,治疗反应以及予后的估计有指导意义.但是肺小细胞癌亚型的划分,不但在形态学方面有时同一病人可有两种类型细胞特征同时存在,且有时由于标本挤压难以诊断.据本文分析,两种亚型在临床表现及予后方面均无明显差异.因此,我们认为临床上肺小细胞癌的诊断似无需进一步再分亚型的必要. The division of histological types of lung cancer should be instructive for histomorphology, clinical diagnosis, treatment response, and subsequent estimation. However, the division of subtypes of small cell lung cancer may not only be morphological, but sometimes the same patient may have two types of cells. Features exist at the same time, and sometimes it is difficult to diagnose due to specimen compression. According to the analysis in this paper, there is no significant difference between the two subtypes in clinical performance and afterwards. Therefore, we believe that the clinical diagnosis of small cell lung cancer does not require further subdivision Subtypes necessary.