Contrast-enhanced ultrasound of histologically proven hepatic epithelioid hemangioendothelioma

Yi Dong, Wen-Ping Wang, Vito Cantisani, Mirko D'Onofrio, Andre Ignee, Lorenzo Mulazzani, Adrian Saftoiu, Zeno Sparchez, Ioan Sporea, Christoph F Dietrich

42 Citationer (Scopus)

Abstract

AIM: To analyze contrast-enhanced ultrasound (CEUS) features of histologically proven hepatic epithelioid hemangioendothelioma (HEHE) in comparison to other multilocular benign focal liver lesions (FLL).

METHODS: Twenty-five patients with histologically proven HEHE and 45 patients with histologically proven multilocular benign FLL were retrospectively reviewed. Four radiologists assessed the CEUS enhancement pattern in consensus.

RESULTS: HEHE manifested as a single (n = 3) or multinodular (n = 22) FLL. On CEUS, HEHE showed rim-like (18/25, 72%) or heterogeneous hyperenhancement (7/25, 28%) in the arterial phase and hypoenhancement (25/25, 100%) in the portal venous and late phases (PVLP), a sign of malignancy. Eighteen patients showed central unenhanced areas (18/25, 72%); in seven patients (7/25, 28%), more lesions were detected in the PVLP. In contrast, all patients with hemangioma and focal nodular hyperplasia showed hyperenhancement as the most distinctive feature (P < 0.01).

CONCLUSION: CEUS allows for characterization of unequivocal FLL. By analyzing the hypoenhancement in the PVLP, CEUS can determine the malignant nature of HEHE.

OriginalsprogEngelsk
TidsskriftWorld Journal of Gastroenterology
Vol/bind22
Udgave nummer19
Sider (fra-til)4741-9
Antal sider9
ISSN1007-9327
DOI
StatusUdgivet - 21 maj 2016

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