The radiographic technics for the diagnosis of NPC (nasopharyngeal carcinoma) have been well established known as plain skull films, nasopharyngography and polytomography etc.

• 摘要放射线摄影技术，诸如头颅的摄影、鼻咽腔造影术及多面断层摄影等，在鼻咽癌的诊断上，已有很大的帮助。