CT平扫与增强扫描对评价下咽癌及其侵犯范围的应用  

Application of CT without and with contrast enhancement in the evaluation of hypopharyngeal carcinoma and its invasive extent

作　　者：李莉[1] 孙学文[1] 庄高明 

机构地区：[1]广州市番禺区人民医院放射科,广州番禺511400

出　　处：《实用医学影像杂志》2009年第5期282-284,共3页Journal of Practical Medical Imaging

摘　　要：目的分析CT平扫与对比增强扫描对下咽癌的诊断价值及下咽癌侵犯周围结构的表现。方法回顾性分析30例经手术或活检证实的下咽癌的CT表现,根据CT征象判断肿瘤的侵犯范围,并与喉镜相比较。结果本组30例中,梨状窝癌16例(53%),咽后壁癌4例(13%),环后区癌5例(17%),混合性癌5例(17%)。CT还可观察到深部结构侵犯及淋巴结转移,而喉镜只能直接观察到病灶表面情况。结论CT较喉镜能更全面地显示下咽癌的部位、大小、侵犯范围及有无淋巴结转移,对下咽癌的诊断有很大的帮助。Objective To evaluate the clinical application of CT without and with contrast enhancement in the evaluation of hypopharyngeal carcinoma and its invasive extent. Methods Thirty patients with hypopharyngeal carcinoma confirmed by surgery or biopsy underwent CT scans before and after contrast enhancement. CT findings of all patients were retrospectively analyzed and correlated with laryngoscopy. Results Of 30 cases, 16 cases （53%） were in pifiform fossa, 4 cases （13%） were in posterior wall of hypopharynx, 5 cases （17%） were in the postcficoid region, and 5 eases （17%） were mixed carcinomas. CT also showed the invasion of hypopharyngeal deep structures and the metastases of lymph nodes, while laryngoscopy could only show ：he surficial appearances of the tumorous lesions. Conclusion Compared with laryngscopy, CT scans without and with contrast enhancement can more clearly show the site, size and invasive extent of hypopharyngeal carcinoma and can identify whether the presence of lymph node metastases, so that it is very helpful to diagnose this disease.

关 键 词：下咽癌 侵犯范围 体层摄影术 X线计算机 喉镜 

分 类 号：R739.6[医药卫生—肿瘤]