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对１２５例肺癌纤维支气管镜下形态改变与组织学类型进行比较，发现两者明显相关。鳞癌以腔内菜花样肿物最多见，支气管粘膜粗糙、增厚，病灶管腔锥形狭窄；腺癌因管壁浸润粘膜呈纵行皱褶且褶深，管壁肥厚致管腔普遍狭窄甚至闭塞；小细胞癌粘膜普遍粗糙、充血、水肿，与正常粘膜界限不清。相当部分小细胞未分化癌和低分化鳞癌粘膜水肿明显粗糙，肿物呈半透明状、组织脆、易出血。说明纤维支气管镜下表现对肺癌组织学类型的判断及分化程度的估价是有价值的。
The morphological changes and histological types of 125 lung cancers under bronchoscopy were found to be significantly related. Squamous cell carcinoma with cauliflower-like tumor in the cavity most common, bronchial mucosal rough, thickening, conical lesion lumen stenosis; adenocarcinoma infiltrating the mucosa of the wall was longitudinal wrinkled and pleated deep, vascular wall thickening caused by widespread narrowing of the lumen Even occlusion; mucosa of small cell carcinomas is generally rough, congested, edematous, and unclear to normal mucosa. A considerable portion of small cell undifferentiated carcinoma and poorly differentiated squamous cell carcinoma have markedly rough mucosal edema. The tumor is translucent, brittle, and easily bleeds. This shows that the performance of fiberoptic bronchoscopy on the histological type of lung cancer and the evaluation of the degree of differentiation is valuable.