瘤内微血管密度与喉癌下咽癌颈淋巴结转移的相关性研究

Study on the relationship between intratumor microvessel density and neck metastasis of laryngeal and hypopharyngeal squamous cell carcinomas

为探讨瘤内血管密度与喉癌、下咽癌淋巴转移的关系，应用免疫组化方法（ＬＳＡＢ法）对６１例喉癌、下咽癌组织行血管内皮细胞染色观察，进行颈部淋巴结转移的相关性研究。结果发现：喉癌、下咽癌瘤内血管密度较良性对照组明显升高，且差异有显著性（Ｐ＜０．０５）；有淋巴结转移组较无淋巴结转移组也明显升高（Ｐ＜０．０５）。提示：瘤内微血管密度不仅与喉、下咽肿瘤的良恶性有关，且和有无淋巴结转移有关。表明：①瘤内微血管密度的高低可以作为预测淋巴转移的重要指标之一。②瘤内微血管密度在肿瘤不同的临床分期间差异无显著性（Ｐ＞０．０５）。③随着肿瘤分化程度的降低，瘤内微血管密度逐渐升高。

Sixty one laryngeal and hypopharyngeal squamous cell, carcinoma (LC, HPC) tissue slides were immunochemically stained using LSAB method to study epithelium cells. The results demonstrated that (1) intratumor microvessel density (ITMD) in LC and HPC group was higher than that of the benign group ( P <0 05). ITMD was higher in the subgroup of LC and HPC with positive lymph node positive than that with negative lymph nodes. This result suggest that ITMD is relevant not only to the nature of the tumor, but also to lymph node metastasis. The level of ITMD is an important predicitive sign of metastasis. (2) The relationship between ITMD and the clinical staging had no statistic significance ( P >0 05). (3) The analysis on the relationship between ITMD and pathologic differentiation indicated that the level of ITMD raised gradually with the lowering of the pathologic differentiation.