鼻咽癌好发于我国南方,是临床常见的恶性肿瘤.其发生率约占头颈部肿瘤的50%以上.与常规X线相比,CT扫描检查不仅能良好的显示鼻咽腔的形态和邻近组织结构,还能充分显示病变向深部蔓延的范围以及更多的颅底骨质破坏和颅内受侵情况.本文根据63例经病理证实的鼻咽癌CT扫描所见,分析了鼻咽癌的生长方式与扩展途径,并论证了颈动脉鞘区受累与颈淋巴结转移的关系. Nasopharyngeal carcinoma occurs in southern China, is a common clinical malignant tumors, the incidence of head and neck cancer accounts for about 50% .Compared with conventional X-ray, CT scan can not only show the morphology of the nasopharynx And adjacent tissue structure, but also fully shows the scope of the disease to the deep spread and more skull base bone destruction and intracranial invasion situation.In this paper, based on 63 cases of pathologically confirmed nasopharyngeal carcinoma CT scan analysis of the nasal Pharyngeal cancer growth and expansion of ways and demonstrated the involvement of the carotid sheath area and cervical lymph node metastasis.