宫颈癌是妇科最常见的恶性肿瘤,为了正确估计肿瘤的转移范围,恰当地制订治疗计划,应清楚地了解宫颈癌的转移途径及转移机理。宫颈癌的主要转移途径是直接蔓延、淋巴转移和血行转移。一、局部扩散宫颈癌局限在宫颈上皮内,未穿透基底膜,无间质浸润的称原位癌。由于上皮内缺乏淋巴和血管,基底膜又是局部扩 Cervical cancer is the most common malignant tumor in gynecology. In order to correctly estimate the metastatic potential of the tumor and formulate a proper treatment plan, we should clearly understand the metastasis and metastasis mechanism of cervical cancer. The main pathways for cervical cancer are direct spread, lymphatic metastasis and hematogenous metastases. First, the local spread of cervical cancer confined within the cervical epithelium, did not penetrate the basement membrane, interstitial infiltration called carcinoma in situ. Due to the lack of lymphatic and blood vessels in the epithelium, the basement membrane is locally expanded