肝脏上皮样血管平滑肌脂肪瘤实时超声造影征象研究

doi:10.3969/j.issn.1672-5069.2020.06.035

Abstract

Abstract: Objective The purpose of this study was to investigate the gray-scale ultrasound(GSUS), Doppler US (CDFI) and contrast-enhanced ultrasound (CEUS) feature of hepatic epithelioid angiomyolipoma (EAML). Methods A retrospective analysis of 20patients with EAML proven by histopathological examination in our hospital was conducted. The clinical data, GSUS, CDFI, and CEUS werereviewed. Results All the 20 cases had a single hepatic lesion, with maximum tumor diameter of (49.23±10.3) mm; the GSUS showed 70.0% (14/20) of lesions were hypo-echoic,15.0% (3/20) hyper-echoic and 15.0% (3/20) mixed-echoic; 50.0% (10/20)of the lesions had striated or branching blood flow and 15.0%(3/20)showed ring-like or arc arterials on Doppler US; the resistance index (RI) was 0.46±0.34; all lesions showed hyperenhancement during arterial phase on CEUS, and 13 cases(86.6%)presenting uniform enhancement; there were 12 cases with high enhancement (80.0%), 2 cases (13.0%) withiso-enhancement and 1 cases(6.6%)with low enhancement in the portal vein phase; in the delayed period, 10 cases (66.6%) had high enhancement, 4 cases (26.6%) had iso-enhancement, and 1 cases (6.6%) had low enhancement. Conclusion The EAML ismainly characterized by hypoechoic, abundant blood flow with low RI, and hyperenhancement in arterial phase and hyper- or iso-enhancement in the portal phase.The combination of GSUS, CDFI and CEUS might improve the correct diagnosis of EAML in clinical practice.

Key words: Epithelioid angiomyolipoma, Doppler ultrasound, Contrast-enhanced Ultrasonography, Feature

Xie Li, He Nian'an, Ye Xianjun, et al. Imaging feature of epithelioid angiomyolipomas on real-time contrast-enhanced ultrasonography[J]. Journal of Practical Hepatology, 2020, 23(6): 897-900.

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Imaging feature of epithelioid angiomyolipomas on real-time contrast-enhanced ultrasonography

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