鼻咽癌CT影像特点分析

Analysis of CT Imaging in Nasopharyngeal Carcinoma

目的是加深对鼻咽癌(ＮＰＣ)ＣＴ征象的认识,提高对其影像诊断水平。方法:搜集经病理证实的ＮＰＣ６９例,详细分析其放疗前ＣＴ表现。结果:本组病例,鼻咽侧壁增厚最多见(８７．０%),咽旁间隙变窄次之(６８．１%),其余依次为茎内软组织增厚致密(５９．４%),其他部位受侵则相对少见。结论:ＮＰＣ累及鼻咽侧壁多见,突破咽频底筋膜后,肿瘤多侵犯咽旁间隙和茎内软组织。

ve:To recognize CT signs of nasopharyngeal carcinoma (NPC) profoundly. Methods: Nasopharynx axial CT scans were performed in 69 cases of NPC proved pathology. Their CT findings before radiotherapy were analyzed in details. Results: The seequence of CT findings in NPC was thickening of the lateral wall of nasopharynx (87.0%), narrowing of parapharyngeal space (PPS)(68.1%), thickening and compactness of the soft-tissue medial to the styloid process (59.4%). involvement of posterior naris and nasal cavity (42.0%), and bone destruction of skull base (37.7%). The rate of the other abnormal finding was low. Conclusions:Involvement of lateral wall of nasopharynx could be seen in most NPC. After breakthrough the pharyngobasilar fascia, the tumor usually invades PPS and the soft-tissue medial to the styloid process.