肝胆管囊腺癌的CT、MRI诊断

目的总结肝胆管囊腺癌的CT、MRI表现，探讨CT、MRI对其诊断价值。方法回顾性分析5例经手术病理证实的肝胆管囊腺癌的CT和（或）MRI表现。结果5例均为女性，年龄58～76岁，病灶位于肝左叶3例，右叶1例，左右叶同时受累1例。均为多发囊性病灶，有厚薄不均的囊壁和分隔；其中3例有壁结节和（或）乳头状突起，1例病灶中有实质性软组织肿块，1例有裳内出血。CT、MRI均见囊内主要为水样密度／信号，增强后CT、MRI均表现为囊壁、分隔及囊腔内实质部分有强化。结论CT、MRI可显示肝胆管囊腺癌的特征性表现，是诊断肝胆管囊腺癌重要、可靠的方法。

Diagnosis of billiary cystadenocarcinoma with CT and MRI

Objective To summarize CT and MRI features of billiary cystadenocar- cinoma and to investigate CT and MRI value in their diagnosis. Methods CT and/or MRI findings of five patients with billiary cystadenocarcinoma confirmed by pathology were analyzed retrospectively. Results The five patients were female with the age of 58~76.The tumors were located in the left in three cases, right in one, and both sides in one.The five patients suffered from billiary cystadenocarcinoma with multilocular cyst, thick or thin cyst wall and internal septation. All fiver cases were revealed as liquid density/signal in CT and MR scans. Three cases had mural nodules and/or papillary excrescences, one had excrescences in the cystic lesions, one had bleeding in the cyst. After intravenous contrast injection, enhancement of the wall, septations and masses was seen in all CT and MR scans. Conclusion CT and MRI may show the character- istics of billiary cystadenocarcinoma, and they are very important and reliable methods in diagnosis of billiary cystadenocarcinoma.