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CT对头颈癌淋巴结转移的评价较临床检 查更准确,31例颈清扫表明,CT分期正确28例(90％)。据报告,用CT分期约5％的头颈癌病例将从N0上升到N1,因有两组淋巴结临床扪诊受限,即最临近颅的颈内淋巴结与咽后淋巴结。本文报告119例新诊断的鼻咽癌用CT评价颈淋巴结转移并同临床发现比较。以框下听线与机架平行,从鞍上池到C5或C6,以5mm 间距扫描评价颅底、鼻咽、鼻咽旁间隙及上中颈,并作增强以更好显示颈动脉与颈静脉。所有扫描在不知道临床检查的情况下独立评价,按Mancuso等与Som的建议标准诊断肿瘤侵犯淋巴结的表现。
CT was more accurate in clinical evaluation of lymph node metastasis of head and neck cancer than in clinical examination. Twenty-one cases of neck dissection showed that CT staging was correct in 28 cases (90%). It has been reported that about 5% of cases of head and neck cancer with CT staging will rise from N0 to N1 due to the limited clinical palpation of the two groups of lymph nodes, namely the most intracranial and retropharyngeal lymph nodes in the skull. This article reports 119 cases of newly diagnosed nasopharyngeal carcinoma with CT evaluation of cervical lymph node metastasis and compared with clinical findings. Under the frame to listen to line with the rack parallel to the pool from the saddle to C5 or C6, 5mm spacing scan evaluation skull base, nasopharynx, nasal parapharyngeal space and upper neck, and enhanced to better show the carotid artery and neck vein. All scans were independently evaluated without clinical examination, and the performance of tumor-infiltrating lymph nodes was diagnosed as recommended by Mancuso et al. And Som.