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- W2384727156 abstract "Objective To evaluate the imaging (CT and MRI) features of hepatic lipoma and angiomyolipoma.Methods 8 cases with fatty lesion within liver (3 hepaticlipoma and 5 hepatic angiomyolipoma) were collected. All cases were confirmed by operation and pathology. Plain scan and double phase (arterial and portal)enhanced scan were performed in 7 cases. MRI plain and dynamic enhanced scan were done in 2 cases. Correlating with pathologic findings, CT and MRI features were reviewed retrospectively.Results 3 hepatic lipoma were well-defined and homogeneous low density with CT value from -79 to-92HU. Non-enhancement was seen after contrast medium administration. In one case MRI showed hyperintense both on T1 and T2 weighted imaging and hyperintense on T1WI with fat suppressing technique. Microscopically,the mass consisted of rich fat tissue. Of the 5 cases of angiomyolipoma, 4 cases were solitary lesion within liver and 1 multiple with simulant lesions in both kidneys. Plain CT scan of angiomyolipoma showed the lesion mixed with variant fat and low-density area which lower than surrounding hepatic tissue.The CT value of these lesions was from -83 to +41HU. Obvious enhancement was seen within the non-fatty area of the lesion. The density of enhanced area was higher than surrounding normal hepatic parenchyma in arterial and portal phase. It decayed into isodense or hypodense in delaying phase.Arterial phase, 2 cases showed transient hepatic attenuation difference(THAT) in surrounding hepatic parenchyma. However, fatty area had no enhancement. Microscopically, the mass contained lipomatous tissue, vessels and smooth muscle.Conclusion CT and MRI can reveal the characteristic manifestations of lipoma and angiomyolipoma of the liver. The accuracy diagnosis of both tumors can be made with multiple phases CT and MRI enhanced scan before operation." @default.
- W2384727156 created "2016-06-24" @default.
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- W2384727156 date "2004-01-01" @default.
- W2384727156 modified "2023-09-23" @default.
- W2384727156 title "CT and MRI diagnosis of hepatic lipoma and angiomyolipoma" @default.
- W2384727156 hasPublicationYear "2004" @default.
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