Corrigan K, Semelka R C
Department of Radiology, University of North Carolina, Chapel Hill 27599-7510, USA.
Abdom Imaging. 1995 Mar-Apr;20(2):122-5. doi: 10.1007/BF00201518.
The magnetic resonance (MR) appearance of fibrolamellar hepatocellular carcinoma (FL-HCC) on T1- and T2-weighted and dynamic serial postgadolinium-DTPA images is reported. Both tumors were large (> 7 cm in shortest dimension) and had central regions of low signal intensity on T1- and T2-weighted images. Diffuse heterogeneous enhancement of the tumors occurred on immediate postcontrast images. Lesions became more homogeneous in enhancement over time, but lack of enhancement of central portions of the tumor persisted. Although persistent lack of enhancement of the tumor scar on late postcontrast MR images may be characteristic of FL-HCC compared with delayed enhancement in focal nodular hyperplasia, the potential similarities between these tumors is stressed.
报告了纤维板层状肝细胞癌（FL-HCC）在T1加权、T2加权及动态钆喷酸葡胺（DTPA）序列增强图像上的磁共振（MR）表现。两个肿瘤均较大（最短径>7cm），在T1加权和T2加权图像上中央区域呈低信号强度。在注射对比剂后的即刻图像上，肿瘤呈弥漫性不均匀强化。随着时间推移，病变强化变得更加均匀，但肿瘤中央部分持续无强化。虽然与局灶性结节性增生延迟强化相比，FL-HCC在注射对比剂后晚期MR图像上肿瘤瘢痕持续无强化可能具有特征性，但强调了这些肿瘤之间潜在的相似性。
