"Pseudo washout" sign in high-flow hepatic hemangioma on gadoxetic acid contrast-enhanced mri mimicking hypervascular tumor

Kyung Won Doo, Chang Hee Lee, Jae Woong Choi, Jongmee Lee, Kyeong Ah Kim, Cheol Min Park

    Research output: Contribution to journalArticlepeer-review

    106 Citations (Scopus)

    Abstract

    OBJECTIVE. The purpose of this article is to describe the "pseudo washout" sign of high-flow hepatic hemangioma that mimics hypervascular tumor on gadoxetic acid-enhanced MRI. CONCLUSION. High-flow hemangiomas might show relatively low signal intensity because of gadoxetic acid contrast uptake in the surrounding normal liver parenchyma during the equilibrium (3-minute delay) phase. Such findings are called pseudo washout and can mimic hypervascular hepatic tumors. However, high-flow hemangioma can be diagnosed by observing bright signal intensity on T2-weighted imaging, arterial phase-dominant enhancement, pseudo washout sign during the equilibrium phase, and isointense or slightly increased signal intensity on subtraction images.

    Original languageEnglish
    Pages (from-to)W490-W496
    JournalAmerican Journal of Roentgenology
    Volume193
    Issue number6
    DOIs
    Publication statusPublished - 2009 Dec

    Keywords

    • Abdominal imaging
    • Gadoxetic acid
    • Hemangioma
    • Liver
    • MRI

    ASJC Scopus subject areas

    • Radiology Nuclear Medicine and imaging

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