近年,国外在原发性肺癌超微结构研究方面屡见报道。本文拟就肺癌组织发生、分类及其超微结构综述如下:一、组织发生肺癌绝大多数来源于支气管被覆上皮,也有来源于支气管腺上皮和肺泡上皮者。肿瘤不同的组织学类型是不同的上皮细胞发生的结果。 In recent years, foreign countries have frequently reported on ultrastructural studies of primary lung cancer. This article intends to review the occurrence, classification and ultrastructure of lung cancer as follows: First, the majority of lung cancers arise from bronchial epithelium, but also from bronchial glandular epithelium and alveolar epithelium. Different histological types of tumors are the result of different epithelial cells.