Hepatocellular carcinoma CT: Difference between revisions
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:*Multiple masses of variable attenuation lesions | :*Multiple masses of variable attenuation lesions | ||
:*May also have central hypoattenuating necrotic portions | :*May also have central hypoattenuating necrotic portions | ||
[[Image:Massive_HCC.gif |thumb|center|500px|Abdominal CT showing massive hepatocellular carcinoma. Case courtesy of Dr Natalie Yang,<ref name="urlHepatocellular carcinoma | Radiology Case | Radiopaedia.org">{{cite web |url=https://radiopaedia.org/cases/hepatocellular-carcinoma-9 |title=Hepatocellular carcinoma | Radiology Case | Radiopaedia.org |format= |work= |accessdate=}}</ref>]] | |||
*Diffuse HCC | *Diffuse HCC | ||
:*May be difficult to distinguish from associated cirrhosis | :*May be difficult to distinguish from associated cirrhosis | ||
[[Image:Diffuse_HCC.gif|thumb|center|1000px|Abdominal CT showing diffuse hepatocellular carcinoma. Case courtesy of Dr Ahmed Abd Rabou,<ref name="urlDiffuse hepatocellular cancer with malignant portal vein thrombosis | Radiology Case | Radiopaedia.org">{{cite web |url=https://radiopaedia.org/cases/diffuse-hepatocellular-cancer-with-malignant-portal-vein-thrombosis |title=Diffuse hepatocellular cancer with malignant portal vein thrombosis | Radiology Case | Radiopaedia.org |format= |work= |accessdate=}}</ref>]] | [[Image:Diffuse_HCC.gif|thumb|center|1000px|Abdominal CT showing diffuse hepatocellular carcinoma. Case courtesy of Dr Ahmed Abd Rabou,<ref name="urlDiffuse hepatocellular cancer with malignant portal vein thrombosis | Radiology Case | Radiopaedia.org">{{cite web |url=https://radiopaedia.org/cases/diffuse-hepatocellular-cancer-with-malignant-portal-vein-thrombosis |title=Diffuse hepatocellular cancer with malignant portal vein thrombosis | Radiology Case | Radiopaedia.org |format= |work= |accessdate=}}</ref>]] | ||
Revision as of 16:01, 9 January 2018
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Mohamad Alkateb, MBBCh [2]
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Hepatocellular carcinoma Microchapters |
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Differentiating Hepatocellular carcinoma from other Diseases |
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Diagnosis |
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Treatment |
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Case Studies |
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Hepatocellular carcinoma CT On the Web |
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American Roentgen Ray Society Images of Hepatocellular carcinoma CT |
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Risk calculators and risk factors for Hepatocellular carcinoma CT |
Overview
Abdominal CT scan with intravenous contrast agent is the best method to diagnose hepatocellular carcinoma. Three-phase scanning (before contrast administration, immediately after contrast administration, and again after a delay) to increase the ability of the radiologist to detect small or subtle tumors. It is important to optimize the parameters of the CT examination, because the underlying liver disease (e.g. hepatitis B) that most hepatocellular carcinoma patients have can make the findings more difficult to appreciate.
Key CT Findings in Hepatocellular Carcinoma
On CT, hepatocellular carcinoma (HCC) is characterized by:[1]
- Focal HCC
- large usually hypoattenuating mass
- May have necrosis/fat/calcification
- Multifocal HCC
- Multiple masses of variable attenuation lesions
- May also have central hypoattenuating necrotic portions
- Diffuse HCC
- May be difficult to distinguish from associated cirrhosis
