[Significance of X-ray computed tomography analysis in invasion and lymph node metastasis and TNM classification of nasopharyngeal carcinoma].

From 1986-1990, 100 NPC patients, proved by pathology and CT scan before treatment, were selected for analysis to observe the relationship between CT features and clinical signs of NPC. The common routes of invasion and metastasis of NPC were analysed. Furthermore, advantages of CT on TNM classification of NPC were discussed.