成人多发胆管错构瘤的CT和MRI诊断

发布时间：2017-12-27 15:17

本文关键词：成人多发胆管错构瘤的CT和MRI诊断　出处：《CT理论与应用研究》2016年03期 　论文类型：期刊论文

【摘要】：目的:探讨成人多发胆管错构瘤的CT、MRI特点,以提高对该病的影像认识及诊断水平。方法:回顾性分析12例经穿刺活检病理证实的成人多发胆管错构瘤的临床及影像资料,总结其影像学特征。结果:胆管错构瘤的CT平扫表现为肝实质多发低密度灶,弥漫或散在分布,境界模糊,形态多样,病灶直径多小于15 mm,增强扫描无明显强化;MRI扫描T1WI序列病变信号低于正常肝实质,T2WI序列病灶显示更清晰,呈明显高信号,病变数量多于CT和T1WI平扫,增强扫描多数病灶无强化,少量病灶呈结节状或轻度环状强化;磁共振胰胆管造影(MRCP)图像显示肝内多发类囊状高信号灶,沿胆管树分布,与胆管树不相通。结论:成人多发胆管错构瘤的CT、MRI具备一定特征性,但仍需与Caroli病、肝脏囊性转移瘤、多发肝囊肿、多囊肝等肝脏囊性病变鉴别。
[Abstract]:Objective: To explore the characteristics of CT and MRI in adult multiple bile duct hamartomas, so as to improve the image recognition and diagnostic level of the disease. Methods: the clinical and imaging data of 12 cases of adult multiple bile duct hamartomas confirmed by biopsy were analyzed retrospectively, and their imaging features were summarized. Results: CT bile duct hamartoma and liver parenchyma showed multiple low density lesions, diffuse or scattered, the realm of fuzzy morphological diversity, the diameter of the lesions was less than 15 mm, but without obvious enhancement; MRI scan sequence of T1WI signal is lower than normal liver parenchyma lesions, T2WI sequence lesions displayed more clearly, a obviously high signal lesions, more than the number of CT and T1WI scan, scan the majority of lesions without enhancement, small lesions showed nodular or slightly enhancement; magnetic resonance cholangiopancreatography (MRCP) images showed multiple intrahepatic cystic high signal lesions, distribution along the biliary tree, not connected with the biliary tree. Conclusion: CT and MRI of adult multiple Biliary Hamartoma are characteristic, but they still need to be differentiated from hepatic cystic lesions such as Caroli disease, hepatic cystic metastases, multiple hepatic cysts and polycystic liver diseases.
【作者单位】：十堰市太和医院(湖北医药学院附属医院)医学影像中心;
【分类号】：R735.8;R445.2;R730.44
【正文快照】： 胆管错构瘤(biliary hamartoma,BH)是一种胆管板发育畸形,由小叶间胆管发育异常所致[1],von Meyeburg于1918年首先描述,因此也被称为von Meyenberg综合征(VMC)[2]。胆管错构瘤可能是在胚胎发育晚期时,胆管板向胆管的转化过程发生了中断,吸收不充分后所导致的错构性病变[3]。病

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