Hepatocellular adenoma CT: Difference between revisions
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==CT== | ==CT== | ||
* The CT scan appearances of hepatocellular adenoma are usually variable, and classical characteristic lesions of adenoma are best seen with multi-phase helical CT scan. | |||
* | * The CT scan findings of hepatocellular carcinoma include; | ||
** Non lobulated, well marginated mass that can be encapsulated and is rarely calcified. | |||
* | ** Homogeneous enhancement in the arterial phase. It is usually isoattenuating but sometimes mildly hypoattenuating relative to normal liver on un enhanced portal venous phase and delayed phase images. | ||
** The presence of intratumoral fat can show a hypoattenuating mass, if it is surrounded by a fatty liver it appears hyperattenuating on all contrast phases and unenhanced images. | |||
* | ** A heterogenous, hypoattenuating area within the tumor is seen in necrosis or old hemorrhage. | ||
** The larger hepatocellular adenomas may be more heterogeneous than smaller lesions and their CT scan appearance is less specific. | |||
* | |||
==References== | ==References== | ||
Revision as of 07:08, 7 January 2019
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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 CT On the Web |
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American Roentgen Ray Society Images of Hepatocellular adenoma CT |
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Risk calculators and risk factors for Hepatocellular adenoma CT |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]
Overview
CT
- The CT scan appearances of hepatocellular adenoma are usually variable, and classical characteristic lesions of adenoma are best seen with multi-phase helical CT scan.
- The CT scan findings of hepatocellular carcinoma include;
- Non lobulated, well marginated mass that can be encapsulated and is rarely calcified.
- Homogeneous enhancement in the arterial phase. It is usually isoattenuating but sometimes mildly hypoattenuating relative to normal liver on un enhanced portal venous phase and delayed phase images.
- The presence of intratumoral fat can show a hypoattenuating mass, if it is surrounded by a fatty liver it appears hyperattenuating on all contrast phases and unenhanced images.
- A heterogenous, hypoattenuating area within the tumor is seen in necrosis or old hemorrhage.
- The larger hepatocellular adenomas may be more heterogeneous than smaller lesions and their CT scan appearance is less specific.