鼻咽癌原发病灶呈坏死溃疡型者占门诊鼻咽癌病例的2％。此外,在结节型、浸润型或菜花型鼻咽癌的原发病灶亦有少部分同时伴有大小不等的坏死和溃疡。这一类型鼻咽癌的放射敏感性低,病灶难于控制,疗效极差。同时也是鼻咽癌于单纯放疗后,原发灶不能控制,继而鼻咽部大出血或病灶向 The primary lesion of nasopharyngeal carcinoma was necrotic ulcer type, accounting for 2% of outpatients with nasopharyngeal carcinoma. In addition, the primary lesions of nodular, infiltrating, or cauliflower-type nasopharyngeal carcinomas are also accompanied by necrosis and ulcers of varying sizes. This type of nasopharyngeal carcinoma has low radiosensitivity, difficult to control lesions, and has poor efficacy. At the same time, after nasopharyngeal carcinoma was treated with radiotherapy alone, the primary tumor could not be controlled, followed by severe pharyngeal bleeding or lesions.