Abstract
目的 探讨肝内胆管囊腺瘤及囊腺癌的CT表现及其病理学改变,评价CT对其诊断价值.方法搜集6例经手术病理证实的肝胆管囊腺瘤及囊腺癌的病例,其中3例作常规CT平扫及增强扫描,3例作螺旋CT平扫及肝动脉门静脉双期增强扫描.回顾性分析6例肝内胆管囊腺瘤及胆管囊腺癌的CT表现,并与病理组织检查结果对照.结果 1例胆管囊腺瘤,呈多囊性病灶,囊壁光整,厚薄一致,部分分隔有较均匀的增厚.1例胆管囊腺瘤恶变,为单囊性病灶;4例胆管囊腺癌中 3例为单囊性病灶,1例为多囊性病变.CT均见囊内主要为水样密度,5例恶性者中4例可见壁结节和(或)乳头状突起,另外1例有囊壁局部增厚;3例有厚薄不均的分隔,2例有囊壁钙化,1例有囊内出血,呈液液平征.常规增强扫描囊壁和分隔有强化.螺旋CT双期增强扫描动脉期囊壁及壁上结节明显强化,门脉期强化减退.结论 CT可显示肝内胆管囊腺瘤和囊腺癌的一些特征性表现,却难于鉴别良性胆管细胞囊腺瘤与恶性胆管细胞囊腺癌.如见病灶有间隔增厚、壁上结节或乳头状突起、囊内出血以及伴粗大钙化者多考虑为恶性的胆管细胞囊腺癌,肝内胆管囊腺瘤与囊腺癌鉴别主要依靠病理。
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