The value of MRI in differentiating hepatic epithelioid angiomyolipoma from hepatocellular carcinoma
10.3969/j.issn.1002-1671.2017.05.016
- VernacularTitle:MRI对肝脏上皮样血管平滑肌脂肪瘤与肝细胞肝癌鉴别诊断的价值
- Author:
Jing WANG
;
Pengju XU
- Keywords:
epithelioid angiomyolipoma;
hepatocellular carcinoma;
magnetic resonance imaging
- From:
Journal of Practical Radiology
2017;33(5):711-714,719
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the value of dynamic contrast-enhanced MRI(DCE-MRI) and diffusion weight-imaging(DWI) in differentiating hepatic epithelioid angiomyolipoma (HEAML) from hepatocellular carcinoma(HCC).Methods The MR data of 15 HEAML and 50 HCC proved surgically and pathologically were analyzed retrospectively.The DCE-MRI and DWI were performed preoperatively.The size, location, margin, T1-weighted images(T1WI),T2-weighted images(T2WI) and DWI signal intensity(SI),enhancement pattern, central vessel, early draining vein, pseudocapsule were recorded.The apparent diffusion coefficient (ADC) value was also calculated.The differences of these MR features between two groups were compared statistically.Results There was one lesion in each patient.For all 15 HEAML lesions, early draining vein, central vessel and pseudocapsule were displayed in 8,11 and 6 lesions, respectively.The wash in and slow out enhancement pattern was shown in 10 lesions and wash in and wash out pattern shown in others (5/15).The mean ADC value was (1.15±0.31)×10-3 mm2/s.For all 50 HCC lesions, early draining vein, central vessel and pseudocapsule were displayed in 6,5 and 45 lesions, respectively.29 lesions were shown as wash in and wash out enhancement pattern and the others (21/50) as wash in and slow out pattern.The mean ADC value was (1.23±0.29)×10-3 mm2/s.There were significant differences in these MR features including draining vein, central vessel and pseudocapsule (P<0.05), but no differences in size, location, margin, SI(T1WI, T2WI and DWI), dynamic enhancement pattern, ADC value(P>0.05) between HEAML and HCC.Conclusion DCE-MRI is more helpful in differentiating HEAML from HCC than DWI.
