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甲状腺低密度结节螺旋CT动态增强扫描与病理对照研究

傅玉存,姚玉民,常爱林, 段玉婷, 秦雷

CHINESE IMAGING JOURNAL OF INTEGRATED TRADITIONAL AND WESTERN MEDICINE（2008）

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Abstract
目的:探讨甲状腺低密度结节(甲状腺癌、甲状腺腺瘤与结节性甲状腺肿)螺旋CT动态增强扫描CT表现的差异,总结出有鉴别诊断价值的CT征象.方法:回顾分析7例甲状腺癌、5例甲状腺腺瘤与20例结节性甲状腺肿,均经手术或穿刺病理证实.所有病例均采用螺旋CT动态增强扫描,绘制三种病变的时间密度曲线,结合病理改变,总结三种病变的CT征象及时间密度曲线的差异.结果:甲状腺癌密度不均匀4例,边界不清5例,病变内见钙化1例,囊变坏死3例.注药后不均匀增强,时间密度曲线为慢升慢降型.甲状腺腺瘤密度均匀4例,边界清晰4例,囊变坏死1例.注药后轻度均匀强化,时间密度曲线为平稳型.结节性甲状腺肿密度一般均匀18例,边界欠清晰12例,内见坏死2例.注药后均匀明显强化15例,时间密度曲线为速升速降型.结论:螺旋CT动态增强扫描可对甲状腺低密度结节做出鉴别诊断.
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Key words
Thyroid Nodules,Tumor Heterogeneity,Differentiated Thyroid Cancer,Cancer Imaging,Medullary Thyroid Cancer
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