鼻咽癌是源于鼻咽部上皮组织的一种恶性肿瘤,绝大多数鼻咽癌病例集中分布在亚洲的东南部。在我国,某些地区被确定为鼻咽癌高发区,如广西、广东、湖南省等。由于其解剖结构和病理的特殊性,放疗是其首选的治疗方法。随着放疗技术不断进步,对影像学的要求越来越高。影像学检查可以 Nasopharyngeal carcinoma is a malignant tumor from the nasopharyngeal epithelium, the vast majority of cases of nasopharyngeal carcinoma concentrated in the southeast Asia. In our country, some areas are identified as high incidence areas of nasopharyngeal carcinoma, such as Guangxi, Guangdong, Hunan Province. Because of its anatomical structure and pathological specificity, radiotherapy is the preferred treatment. With the continuous improvement of radiotherapy technology, imaging requirements are getting higher and higher. Imaging examination can be