"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 journalArticle

88 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
JournalAmerican Journal of Roentgenology
Volume193
Issue number6
DOIs
Publication statusPublished - 2009 Dec 1

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Hemangioma
Liver
Neoplasms
gadolinium ethoxybenzyl DTPA

Keywords

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

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

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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.",
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AU - Doo, Kyung Won

AU - Lee, Chang-Hee

AU - Choi, Jae Woong

AU - Lee, Jongmee

AU - Kim, Kyeong Ah

AU - Park, Cheol Min

PY - 2009/12/1

Y1 - 2009/12/1

N2 - 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.

AB - 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.

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KW - Gadoxetic acid

KW - Hemangioma

KW - Liver

KW - MRI

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