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肾集合管癌的CT和MR影像特点分析 被引量:7

Renal collecting duct carcinoma:CT and MRI findings
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摘要 目的:分析肾集合管癌(CDC)的CT和MR表现,提高对CDC的认识和影像诊断水平。材料和方法:回顾分析14例经病理证实的CDC影像检查资料。分析CDC病变的部位、形态、密度与信号及强化模式。结果:13例为单发,1例为双侧肾脏发病。肿瘤平均最大径(5.82±1.87)cm。11例CDC瘤体轮廓不清,另3例瘤体表现为结节状;侵犯肾盂者11例;10例伴肾门(或/和腹主动脉旁)淋巴结肿大。14例的瘤实质成分CT平扫均为等偏高密度。5例肿瘤实质见单发或多发钙化。在抑脂T1WI上瘤实质呈等或偏高信号,在T2WI上呈低信号。CT动态增强扫描时,皮质期有11例为轻、中度不均匀强化,髓质期进一步强化。行CTA或MRA检查的4例中有3例显示瘤体周围肾动脉分支明显变细或稀少。结论:CDC的CT和MRI表现有一定特征性,多数瘤体轮廓不清,常见细小致密钙化;在抑脂T2WI上呈低信号,较均匀;多为乏血供肿瘤。经CT或/和MRI检查,大多数CDC可作出提示性诊断。
出处 《中国临床医学影像杂志》 CAS 2013年第5期359-362,共4页 Journal of China Clinic Medical Imaging
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共引文献13

同被引文献43

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