例1女,48岁,因患鼻咽部低分化鳞状细胞癌,于1998年3~6月行根治性放疗,2001年10月出现声音嘶哑再次就诊。体检:胸部X线片、颈部及颅底CT、食管检查均未发现肿瘤复发及其他占位病变。喉部检查见左侧声带固定于旁正中位。诊断为放疗后左喉返神经损伤。随访4.5年,病情无变化。例2男 Example 1 Female, 48 years old, suffering from poorly differentiated squamous cell carcinoma of the nasopharynx, performed radical radiotherapy from March to June 1998, and hoarseness re-treated in October 2001. Physical examination: chest X-ray, neck and skull CT, esophageal examination showed no tumor recurrence and other space-occupying lesions. Laryngeal examination see the left vocal cords fixed to the next median. Diagnosis of left recurrent laryngeal nerve injury after radiotherapy. Follow-up 4.5 years, no change in condition. Example 2 male