【摘要】 目的 探讨肝包虫囊肿(简称“肝包囊”)退行性变的原因、CT特征性影像及病理意义。方法 对经手术证实的418例共452个发生不同程度退行性变的肝包囊的CT表现及术中所见进行回顾性分析。结果 根据肝包囊退行性变的程度和变化趋势分为退行性变前期、囊液浓缩期、实体包块期和钙化期4个时期。发生胆瘘的肝包囊在退行性变前期比例较低,囊液浓缩期呈大幅度上升。发生钙化的肝包囊随不同分期的演变,比例呈线性增长。结论 包囊-胆道瘘和营养供给障碍是导致肝包囊退行性变的重要原因,致使包虫活性的降低,囊液性质的变化,囊内物质的坏死以及钙盐的沉积。退行性变是包虫失活、死亡,并使机体自愈的重要过程。更多还原

【Abstract】 Objective To study the causes and significances of CT characteristic imaging in hepatic hydatid cyst degeneration.Methods 452 hepatic hydatid cysts degeneration in 418 cases of hepatic hydatid cyst confirmed by CT appearance and operation were classified and studied.Results According to the degree and the trend of degeneration,it could be divided into four stages:pre-degeneration,concentration,consolidation and calcification.The proportion of cysts with biliary fistula had lower incidence in pre-degeneration,and increased significantly in concentration period.Linear growth of the proportion of calcified cysts occured in four periods.Conclusion The cysts-biliary fistula and nutrient supply obstacles are two main causes resulting hepatic hydatid cysts degeneration,which can lead to parasitic activity reduction,cyst fluid changes,contents necrosis,and calcium deposition.Degeneration is an important process for inactivated,death,and self-healing of hepatic hydatid.更多还原