MRI findings of multiple focal nodular hyperplasia of the liver
10.3760/cma.j.issn.1005-1201.2010.08.010
- VernacularTitle:肝脏多发局灶性结节性增生的MRI诊断
- Author:
Xin WANG
;
Qingtai YU
;
Yu JING
;
Haiyi WANG
;
Jingjing PAN
;
Weidong DUAN
;
Dianjun WANG
;
Huiyi YE
- Publication Type:Journal Article
- Keywords:
Liver neoplasm;
Magnetic resonance imaging
- From:
Chinese Journal of Radiology
2010;44(8):828-830
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the diagnostic value of MRI on multiple focal nodular hyperplasia (FNH) of the liver. Methods MR images of 9 cases with pathological-confirmed multiple FNH were retrospectively analyzed. MRI features of the lesions were correlated with pathological findings. Results Multiple FNH was considered in all these 9 cases. Among them, the primary diagnosis was FNH in 5,hepatic adenoma in 3 and fibrolamellar hepatocellular carcinoma in 1 case. A total of 31 lesions were detected in the 9 cases. On T2WI, 19 lesions presented slightly high-signal intensity, and the other 12 presented iso-signal intensity. On T1WI, 12 lesions presented slightly low-signal intensity, 7 presented iso-signal intensity, and the other 12 presented high-signal intensity. On opposed-phase, the signal intensity of 1 lesion dropped unevenly. After bolus injection of contrast agent Gd-DTPA, in hepatic arterial phase 18 lesions showed mild to marked heterogeneous enhancement, 11 showed marked homogeneous enhancement, 1 showed moderate ring-like enhancement, and the last one did not have obvious enhancement In portal venous and delayed phase, all the lesions turned to iso- or slightly high-signal intensity gradually. Sixteen of 31 lesions presented central scar, which demonstrated mild star-like enhancement in delayed phase. Conclusion Multiple FNH presented certain MRI features, which contributed to the preoperative diagnosis.
