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 language | English |
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Pages (from-to) | W490-W496 |
Journal | American Journal of Roentgenology |
Volume | 193 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2009 Dec |
Externally published | Yes |
Keywords
- Abdominal imaging
- Gadoxetic acid
- Hemangioma
- Liver
- MRI
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging