Hepatocellular adenoma ultrasound: Difference between revisions
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*A solitary well-demarcated heterogeneous mass, | *A solitary well-demarcated heterogeneous mass, | ||
:*hypoechoic: | :* It has been reported that 20%–40% of hepatocellular adenomas are hypoechoic and up to 30% are hyperechoic. | ||
:* | |||
*A hypoechoic halo of focal fat sparing is also frequently seen. | |||
:* Colour Doppler: may show perilesional sinusoids | |||
:* Contrast-enhanced ultrasound | |||
::*arterial phase | |||
:::*hypervascular (similar to FNH, although adenomas are usually less enhancing) | |||
::*portal venous and delayed phases | |||
:::*centripetal filling in (opposite of FNH which shows centrifugal filling) | |||
==References== | ==References== | ||
Revision as of 13:32, 14 October 2015
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Hepatocellular adenoma Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Hepatocellular adenoma ultrasound On the Web |
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American Roentgen Ray Society Images of Hepatocellular adenoma ultrasound |
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Risk calculators and risk factors for Hepatocellular adenoma ultrasound |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Nawal Muazam M.D.[2]
Overview
Ultrasound
On ultrasound hepatocellular adenoma is characterized by:
- A solitary well-demarcated heterogeneous mass,
- It has been reported that 20%–40% of hepatocellular adenomas are hypoechoic and up to 30% are hyperechoic.
- A hypoechoic halo of focal fat sparing is also frequently seen.
- Colour Doppler: may show perilesional sinusoids
- Contrast-enhanced ultrasound
- arterial phase
- hypervascular (similar to FNH, although adenomas are usually less enhancing)
- portal venous and delayed phases
- centripetal filling in (opposite of FNH which shows centrifugal filling)