目的 探讨肝胆管囊腺瘤CT、MRI及B超表现,提高其诊断准确率.方法 回顾性分析9例经病理证实的肝胆管囊腺瘤患者,螺旋CT检查7例,MRI检查4例,B超检查5例.结果 7例患者CT平扫表现为多房囊性病变,囊内可见线状分隔,囊壁均匀增厚,壁光滑;MRI检查4例患者中,病变T1WI呈低信号多房囊性占位,T2WI病灶呈高信号为主混杂信号,囊内分隔呈低信号,增强后动脉期囊壁及分隔轻度强化,门脉期及延迟期继续强化.B超检查5例患者表现为肝内无回声暗区,边界清楚,内见多条强回声带,可见分隔或乳头状隆起.结论 平扫加动态增强CT、MRI及B超能够特征性反映肝胆管囊腺瘤的影像学特点,提高该疾病的诊断准确率.%Objective To evaluate CT,MR imaging and B-ultrasound findings of hepatic biliary cystadenoma,so that to improve the accurate rate of diagnosis of this disease. Methods 9 cases with pathologically confirmed hepatic biliary cystadenoma were retrospectively analyzed,of them,7 cases were examined with spiral CT,4 cases were examined with MR and 5 cases underwent B-ultrasound. Results On CT images,the lesions appeared as multilocular cysts ,the cysts separated by line-like septa and the cystic walls were evenly thickened and smooth. On MRI images,the lesions appeared as multilocular cystic signal intensity on T1 WI and mixed signal intensity with mainly hyperintensity on T2 WI,after administration of contrast medium, the capsule walls and the septa were slight enhancement at arterial phase until portal venous phase and delayed phase. On B-ultrasound,the lesions appeared as no echo area with clear boundary,there were strong echo bands,separation or papillary bulge inside the lesion. Conclusion Plain and dynamic spiral CT,contrast-enhanced MRI and B-ultrasound appearances of hepatic biliary cystadenoma are of significant value in diagnosing this disease.
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