Pseudo Washout" Sign in High-Flow Hepatic Hemangioma on Gadoxetic Acid Contrast-Enhanced MRI Mimicking Hypervascular Tumor
- Authors
- Doo, Kyung Won; Lee, Chang Hee; Choi, Jae Woong; Lee, Jongmee; Kim, Kyeong Ah; Park, Cheol Min
- Issue Date
- 12월-2009
- Publisher
- AMER ROENTGEN RAY SOC
- Keywords
- abdominal imaging; gadoxetic acid; hemangioma; liver; MRI
- Citation
- AMERICAN JOURNAL OF ROENTGENOLOGY, v.193, no.6, pp.W490 - W496
- Indexed
- SCIE
SCOPUS
- Journal Title
- AMERICAN JOURNAL OF ROENTGENOLOGY
- Volume
- 193
- Number
- 6
- Start Page
- W490
- End Page
- W496
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/118809
- DOI
- 10.2214/AJR.08.1732
- ISSN
- 0361-803X
- 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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