对13例喉癌切除术患者分别从肿瘤边缘外2mm及5mm处切取标本,同时于肿瘤中心部位相连之喉软骨切取标本,光镜下观察各部位之组织切片有无残留肿瘤组织。结果:距肿瘤边缘外2mm及5mm部位切片中有残余肿瘤组织各2例,在肿瘤中心部相连之喉软骨有肿瘤组织4例。并就肿瘤扩展范围的相关因素进行讨论。 Thirteen patients with laryngectomy were cut at 2 mm and 5 mm respectively from the edge of the tumor. Specimens were taken from the laryngeal cartilage connected to the center of the tumor, and the residual tumor tissues were observed under light microscopy. Results: There were 2 cases of residual tumor in 2 mm and 5 mm sections outside the tumor margin, and 4 cases of laryngeal cartilage in the center of the tumor. And discuss the related factors of tumor expansion range.