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目的：评估下咽癌侵犯喉结构（ 包括声门旁间隙、会厌前间隙、杓会厌襞、甲状软骨、环状软骨及杓状软骨） 的 Ｃ Ｔ 诊断价值。方法：对２１ 例下咽癌的 Ｃ Ｔ 扫描与病理检查结果进行对比分析，以确定其准确性，并同喉镜检查＋ 喉侧位片进行比较。结果： Ｃ Ｔ 对于判断下咽癌侵犯喉结构的准确率远较喉镜检查＋ 喉侧位片高，假阳性及假阴性结果较少，优势明显。结论：应将 Ｃ Ｔ 扫描纳入下咽癌常规临床检查。
OBJECTIVES: To evaluate the CT diagnostic value of hypopharyngeal carcinoma invading the laryngeal structure (including the paraglottic space, pre-epilopathic space, epiglottis anitropis, thyroid cartilage, cricoid cartilage, and arytenoid cartilage). Methods: The CT scans and pathological examinations of 21 cases of hypopharyngeal carcinoma were compared to determine the accuracy and compared with laryngoscopy + laryngeal radiographs. Results: The accuracy of C T in judging hypopharyngeal carcinoma invasion of laryngeal structure was much higher than that of laryngoscopy + laryngeal radiographs. There were fewer false positive and false negative results. Conclusion: C T scan should be included in routine clinical examination of hypopharyngeal carcinoma.