CT对鼻咽纤维血管瘤的诊断和应用价值（临床医学资料）.docVIP

CT对鼻咽纤维血管瘤的诊断和应用价值（临床医学资料） 文档信息 属性： F-01NHUV，doc格式，正文17386字。质优实惠，欢迎下载！ 适用： 作为医学资料、临床医学资料写作的参考文献，解决如何写好实用应用文、正确编写文案格式、内容摘取等相关工作。 目录 TOC \o "1-9" \h \z \u 目录 1 正文 1 文1：CT对鼻咽纤维血管瘤的诊断和应用价值 1 1 资料与方法 2 2 结果 3 3 讨论 4 文2：CT在直肠癌诊断和分期中的应用价值 5 1 材料和方法 5 2 结果 6 3 讨论 7 参考文摘引言： 9 原创性声明（模板） 10 文章致谢（模板） 10 正文 CT对鼻咽纤维血管瘤的诊断和应用价值（临床医学资料） 文1：CT对鼻咽纤维血管瘤的诊断和应用价值 [ABSTRACT] Objective: To explore the diagnosis value of CT in the nasopharyngeal angiofibroma. Methods: Data of 14 cases ofnasopharyngeal angiof ibroma confirmed by surgery and pathological examination were retrospectively analyzed, including tumor size, deity, location, contrast enhancement and sclerotin involvement. Results: According to Chandler classification, 3 out of the 14 cases were evaluated as stage Ⅱ, 9 cases were stage Ⅲ and 2 cases were stage Ⅳ. Nasopharyngeal angiofibroma were shown as expanding lesio with dee matrix of 3261 HU in regular CT, and 80130HU in contrast enhanced CT. It was also shown that pterygopalatine fossa were expanded, posterior wall of maxillary sinus were pressed forward, surrounding sclerotin were molded or broken. Skull base invasion through intracranial holes or cracks was shown in 5 cases. Conclusion: Enhanced CT scan could be used for making definite diagnosis, preoperative stage evaluation, and chemotherapy guidance because it shows locatio and erosion status of nasopharyngeal angiofibroma. [KEY WORDS] Nasopharyngeal angiofibroma; Xray Computed tomography; Diagnosis 鼻咽纤维血管瘤好发于10～25岁的青年男性，是鼻咽顶部后鼻孔区最常见的良性肿瘤[1]。该瘤在病理上虽属良性，但具有浸润性生长的特点，可向鼻旁窦、眼眶、 颅底甚至颅内侵犯蔓延，如术前或放疗前不能对肿瘤的侵犯范围很好进行把握，导致肿瘤残留，术后复发率高。肿瘤能否全部切除以及术前对预后的判断常常取决于影像学早期诊断及准确定位[2]。本文对我院2005年3月～2010年6月收治的14例鼻咽纤维血管瘤患者的CT资料进行分析，结合 文献 探讨增强CT对鼻咽纤维血管瘤在诊断和分期方面的应用价值。 1 资料与方法 临床资料 本组患者14例均为男性，年龄13～28岁，中位年龄岁，均经手术和术后病理证实。临床症状包括：鼻塞、顽固性鼻衄、头痛、突眼、耳闷及视力减退等;14例均出现不同程度的鼻塞，9例出现顽固性鼻衄，头痛患者7例，2例出现突眼伴视力减退，耳闷1例。14例均行手术 治疗 ，术后3例于3～6个月内复发。 检查方法 采用荷兰飞利浦brilliance 16层螺旋CT扫描仪行鼻咽颅底扫描，患者均先横轴位平扫及增强扫描，矩阵512×512，层厚和间距均为5mm，然后行冠状位及矢状位重