论文部分内容阅读
目的总结肝胆管囊腺瘤和囊腺癌的CT、MRI表现,探讨CT、MRI诊断该肿瘤的价值。方法回顾性分析经手术病理证实为肝胆管囊腺瘤(3例)和囊腺癌(5例)的CT和(或)MRI表现、术前诊断,并与病理所见进行对照分析。结果3例囊腺瘤均为单房或多房的囊性肿物,无壁结节,术前均误诊为肝包虫或肝囊肿;5例恶性者中囊腺癌3例,囊腺瘤伴局部癌变2例。5例均为单房或多房的囊实性肿物,有壁结节。CT扫描囊性部分呈均匀液性密度,囊壁、分隔厚薄不均,壁结节大小不一,增强扫描囊壁、分隔及壁结节强化。MR示囊性部分呈均匀液性信号,增强扫描囊壁、分隔及壁结节强化。5例恶性者术前4例诊断为囊腺瘤或囊腺癌,1例诊为胆管癌。CT、MRI表现与病理所见对应良好。结论胆管囊腺癌在CT、MRI上具有特征性表现,可以做到术前正确诊断;但胆管囊腺瘤如果无壁结节则缺乏特征性表现,需要和肝复杂性囊肿或肝包虫病等鉴别。
Objective To summarize the CT and MRI findings of hepatobiliary cystadenoma and cystadenocarcinoma and to explore the value of CT and MRI in the diagnosis of this tumor. Methods The CT and / or MRI findings of hepatobiliary cystadenoma (3 cases) and cystadenocarcinoma (5 cases) confirmed by surgery and pathology were retrospectively analyzed. Preoperative diagnosis was performed and the results were compared with the pathological findings. Results 3 cases of cystadenoma were single or multiple cystic mass, no wall nodules, were misdiagnosed as preoperative hepatic hydatid or hepatic cyst; 5 cases of malignant cystadenocarcinoma in 3 cases, cystadenoma With local cancer in 2 cases. 5 cases were single or multiple chamber cystic tumor, wall nodules. CT cystic part was uniform liquid density, wall, the separation of uneven thickness, wall nodules of different sizes, enhanced scan cyst wall, separation and wall nodules enhanced. MR showed a cystic part of the homogeneous liquid signal, enhanced scan the wall, separation and wall nodules enhanced. 5 cases of malignant preoperative diagnosis of cystadenoma or cystadenocarcinoma in 4 cases, 1 case diagnosed as cholangiocarcinoma. CT, MRI findings and pathological findings corresponding well. Conclusions Bile duct cystadenocarcinomas are characterized by CT and MRI, which can be correctly diagnosed before operation. However, the characteristics of non-wall nodules of cholangioedenocarcinoma are lacking and need to be related to hepatic complex cyst or hepatic hydatid disease Other identification.