Title: Differential diagnosis of hepatic tumor-like lesions with real time contrast enhanced ultrasonography
Abstract: Objective To observe the blood flow characteristics of hepatic tumor-like lesions with CEUS.Methods Totally 41 lesions in 35 patients of tumor-like lesions were evaluated.Among them,21 cases were confirmed with surgery,14 with enhanced CT/MRI or follow-up.Results Hyperenhancement in the arterial phase was observed in all 13 FNHs(13/13,100%).Central spoke wheel-shaped enhancement during early arterial phase was found in 10 cases of FNH,while central enhancement and a transient peripheral unenhanced zone was seen in 3 FNHs.Hyperenhancement in the portal venous phase was seen in all FNHs(13/13,100%),while hyper or isoenhancement(11/13,84.62%) and central hypoenhancement(2/13,15.38%) were detected in the late phase.Twelve patients with solitary necrotic nodules(SNN) showed no enhancement throughout three phases,but the size and shape were all different.Four patients with inflammatory pseudotumor of the liver(IPL) showed diffuse hyperenhancement in the arterial phase and washout rapidly in portal venous phase.In 6 patients with focal fatty change(FFC),hyperenhancement(2/6,33.33%),hypoenhancement(1/6,16.67%) and isoenhancement(3/6,50.00%) were found in arterial phase,whereas isoenhancement in the portal venous and late phase were noticed in all 6 patients.Conclusion FNH,SNN and FFC have specific performance during CEUS.IPL should be differentiated from primary hepatocellular carcinoma.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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