快速充盈型肝海绵状血管瘤的CT表现及特点

目的探讨快速充盈型肝海绵状血管瘤（ffHCH）的动态增强CT表现特征。方法回顾性分析13例共15个ffHCH病灶的强CT资料,观察病灶部位、大小、三期动态（动脉期、门静脉期及延迟期）强化模式,以及是否伴有动脉-门静脉分流（APS）、假包膜征及肝包膜回缩征等表现。结果ffHCH病灶好发于肝右叶近包膜下区域;直径（2.42±0.64）cm;动脉期病灶完全强化呈高密度,病灶平均CT值明显高于同期正常肝实质（P〈0.05）;门静脉期病灶呈高或等密度,病灶平均CT值仍明显高于肝实质（P〈0.05）;延迟期病灶呈等或稍高密度,但其强化程度与肝实质无统计学意义（P〉0.05）;部分病灶可见APS,发生率33.33%;无假包膜征及肝包膜回缩征。结论ffHCH三期增强CT表现在病灶位置、大小、增强方式和伴发APS等方面有一定特征,有助于该病的诊断。

CT imaging features of flash filling hepatic cavernous hemangioma

Objective To investigate CT imaging features of flash filling hepatic cavenous hemangioma(ffHCH) under triphasic contrast-enhanced CT scan.Methods The CT imaging features of 15 ffHCHs in 13 patients were retrospectively reviewed.Lesion location,size,dynamical triphasic(hepatic arterial phase,portal venous and delayed phases) enhancement pattern,prevalence of arterio-portal shunt(APS),pseudocapsule and hepatic capsule retraction were evaluated.Results The ffCHC lesions were prominently located in the subcaps...