Liver abscess MRI: Difference between revisions
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==MRI== | ==MRI== | ||
* Pretreatment amebic liver abscess appears as a heterogeneously low-signal intensity mass with sharp borders on T1 and as a hyperintense region with hyperintensity extending to the liver surface, corresponding to [[edema]]tous hepatic [[parenchyma]]. | * Pretreatment amebic liver abscess appears as a heterogeneously low-signal intensity mass with sharp borders on T1 and as a hyperintense region with hyperintensity extending to the liver surface, corresponding to [[edema]]tous hepatic [[parenchyma]]. | ||
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{{WS}} | {{WS}} | ||
[[Category:Gastroenterology]] | [[Category:Gastroenterology]] | ||
[[Category:Mature chapter]] | [[Category:Mature chapter]] | ||
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[[Category:Needs content]] | [[Category:Needs content]] | ||
Latest revision as of 18:12, 18 September 2017
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Liver abscess Main Page |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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MRI
- Pretreatment amebic liver abscess appears as a heterogeneously low-signal intensity mass with sharp borders on T1 and as a hyperintense region with hyperintensity extending to the liver surface, corresponding to edematous hepatic parenchyma.
- Progression of edema is followed with T2-weighted imaging.
- Posttreatment amebic liver abscess becomes homogeneously hypointense on T1-weighted images.
- Maturation of the abscess wall during and after treatment is characterized by the appearance of concentric rings.
- Differential for MR findings for amebic liver abscess also includes bacterial abscess, hematoma and necrotic tumor.