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胃肠间质瘤的CT诊断

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摘要 目的:分析胃肠道间质瘤(GIST)的CT表现特点,探讨CT对该肿瘤的诊断价值。资料与方法:回顾性分析经手术病理证实GIST6例,术前均行CT平扫和双期增强扫描。结果:肿瘤发生于胃部4劁,回肠2例。痫灶呈圆形或类圆形。平扫:肿瘤呈均勺等密度5例;肿瘤周边呈等密度、中间呈低密度1例。增强扫描:动脉期病灶轻度强化;门脉期病灶明显均匀强化3例;病灶中央变性、坏死、液化、周边明显强化2例;病灶轻度强化1例;6例GISI、中均为恶性,肿块直径3-8cm,边界清楚4例;肠系镆增厚伴淋巴结肿大1例,脂肪间隙模糊1例;粘膜面溃疡2例。结论:CT检查GIST定位准确,定性较难无特异性,确诊需依赖于病理学检查。
出处 《医用放射技术杂志》 2005年第3期82-83,共2页 Journal of Medical Radiology Technology
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