喉咽癌CT表现及其临床意义

目的　讨论喉咽癌CT表现及其临床意义。方法　分析 18例经手术和病理证实的喉咽癌CT资料。结果　 18例喉咽癌位于梨状窝 11例、环状软骨后区 5例和咽后壁 2例 ,呈等密度或混杂密度软组织肿块 ,增强呈轻度强化 ;肿瘤推移环状、杓状软骨向前移位及甲杓间隙和环甲关节间距增宽为其特征性表现 ,侵犯喉内结构、食管起始部 ,破坏喉软骨及颈部淋巴结转移为间接征象。结论　CT能很好地显示喉咽癌的部位、大小和侵犯范围及有无淋巴结转移 ,对制定治疗计划和评价预后有重要价值。

Laryngopharyngeal Carcinoma:CT Manifestations and Its Clinical Significance

Objective To evaluate CT manifestations and its clinical significance of the laryngopharyngeal carcinoma.Methods CT findings of 18 cases with laryngopharyngeal carcinoma proved by surgery and pathology were analysed.Results Of 18 cases,11 cases were in the piriform fossa,5 cases were in the postcricoid region and 2 cases were in the posterior wall of laryngeal pharynx.The tumor showed isodense or mixed density and slightly enhancement.It was the characteristic feature of the laryngopharyngeal carcinoma that the tumor pushed the annular and arytenoid cartilage displacement anteriorly,the thyroarytenoid gap and cricothyroid joint were widened.Other indirect findings included invasion of the larynx and esophageal ostium,destruction of laryngeal cartilage and metastasis of lymph node of neck.Conclusion CT can reliably exhibit the location,size and extent of the tumors and metastasis of lymph node of neck.It is useful in working out the thearapeutic program and evaluating prognoses.