肝局灶性结节性增生CT动态增强影像学特征(附35例报告)

Imaging features of dynamic contrast-enhanced CT in focal nodular hyperplasia(35 cases-reports attached)

目的:探讨肝局灶性结节性增生(FNH)的CT影像学特征,提高FNH的诊断能力。方法:通过回顾性分析近7年病理证实的35例FNH患者CT资料,对FNH的CT影像学特征进行总结分析。结果:本资料35例FNH患者中,30例为典型FNH、5例为非典型FNH,总共44枚FNH病灶;3例为肝内多发病灶、32例为孤立结节,32枚孤立结节中有12枚存在中央瘢痕、多发病灶中未发现存在中央瘢痕;44枚病灶在CT动态增强动脉期37枚明显强化,延迟期12枚中央瘢痕有10枚明显强化。结论:FNH的CT动态增强具有特征性表现及央瘢痕在动态增强延迟期明显强化特征,对FNH的诊断具有重大的意义,有助于FNH的诊断。

Objective： To explore the imaging features of dynamic contrast-enhanced CT in focal nodular hyperplasia （FNH）, so as to improve the diagnosis of FNH. Methods： The CT imaging findings of our patients with FNH with proved pathology were retrospectively analyzed and summarized. Results：In this study of 35 cases with FNH ,30 were typical FNH and 5 were atypical FNH. There were totally 44 FNH lesions, of which 3 were multiple lesions and 32 were solitary nodules. Of 44 nodules,37 were obviously enhanced in the CT dynamic enhanced arterial phase. In the delay phase, 10 out of the 12 central-scar cases were enhanced remarkably. Conclusion： The dynamic contrast-enhanced CT scanning used in FNH has typical features. The obviously enhanced central-scar characteristics in the delay phase contribute to the diagnosis of FNH and are of great significance.