"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

98 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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