CT增强扫描对肝血管瘤的诊断价值

目的探讨肝血管瘤的CT表现，提高对典型及不典型肝血管瘤CT表现的认识。方法回顾性分析2012年2月至2014年2月76例经临床诊断为肝血管瘤且行CT检查的临床及影像学资料。结果76例肝血管瘤患者，72％呈典型的强化方式，CT平扫表现为肝内单发或多发类圆形或类椭圆形低密度影，增强扫描后动脉期边缘结节样明显强化，门脉期及延迟期向中心逐渐填充。28％呈不典型强化方式，其中最常见的不典型强化方式为动脉期病灶完全强化，并周围有异常灌注。结论肝血管瘤在CT上有多种影像表现，熟悉不典型的影像表现可提高诊断准确性，减少误诊。

Objective To investigate the CT appearance of hepatic hemangioma including both typical and atypical type. Methods Seventy- six patients with clinically proved hepatic hemangioma were retrospectively analyzed at the aspect of their CT appearances and clinical history from Feb. 2012 to Feb. 2014. Results 72% of hepatic hemangiomas showed typical enhancement pattern, with nodular-like enhancement on arterial phase, and progressively concentric enhancement on portal and delay phases. 28% of hepatic hemangiomas showed atypical enhancement. The most common atypical pattern was entire enhancement on arterial phase with peripheral transient perfusion disorder. Conclusion The CT appearance of hepatic hemangioma is various. Being familiar of the atypical radiologic appearance of hepatic hemangioma can improve the diagnostic accuracy and decrease the misdiagnostic rate.