术前了解喉癌(LC)是否侵犯喉软骨对确定分期及治疗方案具有重要意义。对75例LC进行前瞻性及50例正常喉部CT扫描进行回 顾性研究以确定环、杓状软骨硬化在喉癌诊断中的意义。 75例均为鳞癌,男性,45～86岁。CT检查:静脉注射150～200ml非离子型造影剂后 Preoperative understanding of laryngeal cancer (LC) is the invasion of laryngeal cartilage for the determination of staging and treatment program is of great significance. The prospective and 75 normal laryngeal CT scan of 75 cases of LC were retrospectively studied to determine the significance of ring and arytenoid sclerosis in the diagnosis of laryngeal cancer. 75 cases were squamous cell carcinoma, male, 45 to 86 years old. CT examination: intravenous injection of 150 ~ 200ml non-ionic contrast agent