Title: Ultrasonographic features of hepatic tuberculoma and bacterial hepatic abscess:a controlled study
Abstract: Objective To observe the features of hepatic tuberculoma and compare with those of bacterial hepatic abscess on ultrasound.Methods Ten cases of hepatic tuberculoma (15 lesions) and 16 cases of bacterial hepatic abscess (16 lesions) were studied with conventional ultrasonography and contrast-enhanced ultrasonography (CEUS) to analyze dynamic enhancement of lesions,plot time-intensity curve for quantification,and collect data of the time to enhancement and the time to peak enhancement.Results Fifteen hepatic tuberculoma lesions were hypoechoic in conventional ultrasonography and hyperenhanced during the arterial phase in CEUS,of which eleven showed rim enhancement and four,diffuse enhancement.The time to enhancement for them was 12.3-16.8 s with an average of (14.1±1.9)s;the time to peak enhancement was 23.5-32.3 s with an average of (27.7±2.7) s.For 16 bacterial hepatic abscess lesions,10 were hypoechoic and 6 were heteroechoic in conventional ultrasonography.During the arterial phase,all 16 lesions were hyperenhanced,of which ten showed honeycomb like enhancement;four,rim enhancement,and two,diffuse enhancement.The time to enhancement for them was 13.3-21.3 s with an average of (16.2±2.5) s;the time to peak enhancement was 28.6-53.9 s with an average of (35.6±8.6) s.All lesions were rapidly enhanced to the peak during the arterial phase,and the enhancement was gradually attenuated until the portal venous phase and the delayed phase when they were hypoechoic or nonechoic.Conclusions Though hepatic tuberculoma and bacterial hepatic abscess are similar in conventional ultrasonography and CEUS,they are also characterized by typical features.Combination of clinical and pathological findings can improve the differential diagnosis of them.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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