鼻咽癌是我国常见的恶性肿瘤之一，其主要治疗手段为放疗。目前Ⅰ期病人的５ａ生存率约为６６％～８０％［１］，而晚期病人治疗效果一直欠佳。我院自１９９５年１２月—１９９７年１２月对收治的５４例晚期鼻咽癌（Ｎ≥４ｃｍ）进行根治性放疗和放疗合用化疗的前瞻性临床... Nasopharyngeal carcinoma is one of the most common malignant tumors in our country. Its main treatment is radiotherapy. At present, the survival rate of stage Ⅰ patients is about 66% to 80% [1], while the treatment of patients with late has been poor. 54 cases of advanced nasopharyngeal carcinoma (N≥4cm) admitted to our hospital from December 1995 to December 1997 were prospectively treated with radical radiotherapy combined with radiotherapy and chemotherapy ...