论文部分内容阅读
目的探讨肝胆片形吸虫病的MRI表现。方法 2009年6月至2013年7月昆明医科大学第一附属医院9例肝片形吸虫病患者行MRI平扫T1WI、T2WI、DWI及增强检查。分析肝内病灶的数量、分布、大小、形态、信号及胆管扩张、脾增大、腹部淋巴结肿大等影像改变,总结其MRI表现。结果 9例肝片形吸虫病均多发、6例累及多叶、分布于肝外围或深部、5例病灶约3~4 cm大小、形态为簇状隧道样(5例)或不规则囊腔及蜂窝灶(7例)、平扫增强表现为三种信号类型、DWI以高信号为主(6例)、4例合并胆管轻度扩张、脾大(7例)及淋巴结肿大(3例)。平扫T1WI、T2WI均为稍高或高信号的病灶类型(3例)以及DWI病灶多呈高信号的表现。结论肝外周簇状隧道样结构和增强门脉期不规则蜂窝或囊腔灶为特征性改变。
Objective To investigate the MRI manifestations of hepatobiliary fistula. Methods Nine patients with Fasciola hepatica from June 2009 to July 2013 in Kunming Medical University First Affiliated Hospital were examined with T1WI, T2WI and DWI. The number, distribution, size, shape, signal and bile duct dilatation, splenomegaly and abdominal lymph node enlargement were analyzed to analyze the MRI findings. Results Nine cases of Fasciola hepatica were found frequently. Six of them were multilobular and distributed in the periphery of the liver or in the deep. The size of the lesions was about 3 ~ 4 cm in 5 cases. Clusters of tunnels (5 cases) or irregular cysts (7 cases), three types of signal enhancement (DWI), high signal (6 cases), mild dilatation of bile duct (4 cases), splenomegaly (7 cases) and lymphadenopathy (3 cases) . In T1WI and T2WI, the lesions were slightly higher or higher (3 cases), and DWI showed mostly high signal. Conclusions Clustered tunnel-like structures of the periphery of the liver and enhanced portal venous irregular cellular or cystic lesions are characteristic changes.