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目的 分析肿瘤侵犯食管入口 (环咽 )的X线、CT和MRI表现 ,探讨肿瘤侵犯食管入口的影像诊断标准。方法 回顾分析 2 7例经临床、病理证实的侵犯食管入口病变的X线、CT和MRI表现。包括原发于食管环咽段的鳞癌 4例 ,颈段食管癌侵犯食管入口 5例 ,梨状窝癌侵犯食管入口 7例 ,喉癌侵犯食管入口 6例 ,甲状腺癌侵犯食管入口 5例。结果 2 7例常规X线均见钡剂通过食管入口受阻 ,16例见食管入口狭窄、黏膜破坏等征象。 2 3例经CT或MRI发现食管环咽段增厚伴杓 椎间距或环 椎间距增大 ,14例MRI均发现肿块与食管入口的界限模糊、消失 ,7例CT发现杓状软骨破坏 ,6例甲状软骨破坏。结论 CT或MRI发现食管环咽段增厚伴杓 椎间距或环 椎间距增大 ,MRI发现肿块与食管入口的界限模糊、消失 ,X线吞钡检查食管入口狭窄、黏膜破坏等征象是食管入口受侵的特征性改变。
Objective To analyze the X-ray, CT and MRI features of tumor invading esophageal inlet (loop pharynx), and to discuss the imaging diagnostic criteria for tumor invasion of esophageal inlet. Methods We retrospectively analyzed the manifestations of X-ray, CT and MRI of 27 cases of transesophageal entrance lesions confirmed by clinic and pathology. Including the primary esophageal squamous cell carcinoma in 4 cases, cervical esophageal cancer violation of esophageal inlet in 5 cases, pear invaded esophageal invasion in 7 cases, invasion of esophageal invasion of 6 cases of throat cancer, thyroid cancer violation of esophageal entrance in 5 cases. RESULTS: Twenty-seven cases of conventional X-rays were found to be blocked through the esophageal entrance, and 16 cases showed signs of esophageal entrance stenosis and mucosal destruction. Twenty-three cases of esophageal pharyngeal thickening with CT or MRI showed increased distance between sacral vertebra or vertebral intervertebral space. 14 cases of MRI found that the boundaries between lumps and esophageal entrance were blurred and disappeared. 7 cases showed destruction of arytenoid cartilage and 6 cases of thyroid. Cartilage destruction. Conclusion The CT or MRI findings of esophageal pharyngeal segment thickening with an increase in the distance between the sacral vertebra or the vertebral distance, MRI found that the boundaries between the lumps and the esophagus entrance were blurred and disappeared. X-ray puncture was used to check esophageal entrance stenosis and mucosal destruction. Characteristic changes.