双平面CT 扫描诊断鞍区脊索瘤的价值

 目的　评价轴位加冠状位 CT扫描在诊断鞍区脊索瘤中的作用。方法　回顾性分析 9例经手术证实的脊索瘤的轴位和冠状位 CT扫描资料 ,其中 7例同时行增强扫描。结果　所有病例的病灶中心均位于鞍区 ,其边缘不规则或模糊 ,蝶骨体骨质明显破坏 ,4例鼻咽部有巨大软组织肿块 ,6例患者的瘤体内可见斑片状或不规则块状钙化影。结论　双平面 CT扫描可准确显示肿瘤向颅内侵犯的范围以及骨质破坏的程度 ,在排除鞍区的其它病变后 ,结合临床表现和 CT特征可诊断脊索瘤.

Biplane Computed Tomography of Sella Chordoma

Objective To evaluate biplane Computed tomography(CT) a transverse and coronal in diagnosing sella chordoma.Methods 9 cases of sella chordoma proved by operation and pathology were retrospectively discussed.All patients were examinated by biplane CT.7 cases of them were simultaneously injected with ionized contrast.Results The central location of mass was sella,its rim was irregular or dim.The density of was diverse in 3 cases,iso in 4cases,hypo | in 2 cases.Conclusion Biplane CT is of value in delineating the precise extent of tumor,both intracranially and extracranially,as well as in evaluating bony changes.After excluding the tumors which were frequent in sella,we should consider it chordoma.