肝脏局灶性结节增生的螺旋CT诊断

目的探讨肝脏局灶性结节增生的螺旋CT影像表现,旨在提高对该病的诊断准确性。方法经手术病理证实的肝脏局灶性结节增生19例均经螺旋CT平扫与增强扫描,对其影像特征回顾性分析。结果肝脏局灶性结节增生多发生于青壮年患者,主要分布在肝脏表面,病变边界清晰,动态增强肝动脉期病灶总体显著强化,病灶内见点状、小星状、大片放射状低密度中央瘢痕影,其中大片放射状中央瘢痕延时扫描可见轻度-中度强化。结论螺旋CT动态增强扫描对肝脏局灶性结节增生的定性诊断有较高价值。

CT diagnosis of focal nodular hyperplasia in the liver

Objective To explore the CT findings of focal nodular hyperplasia(FNH)of the liver so as to elevate the diagnostic accuracy.Methods Nineteen patients with surgically and pathologically proved FNH of the liver underwent spiral CT scans without and with contrast enhancement,while CT findings in all patients were analyzed retrospectively.Results FNH of the liver frequently occurred in young patients and mainly distributed on the surface of the liver with clear border.Dynamic enhanced scan showed the lesions of FNH in artery phase were obvious enhancement associated with central scar shadows which appeared as punctual,small stellate or large patchy hypodense,of them,large patchy radiant-form scar was slight or middling enhacement after delayed scans.Conclusion Dynamic enhanced scans of spiral CT play important role in the diagnosis of FNH of the liver.