Liver tumors Flashcards

hepatic abscesses









Multifocal hepatic steatosis

Focal hepatic steatosis. Vessels course through hypoattenuating lesion which does not demonstrate mass effect.
30 yoF with no sig past medical history

Hepatic adenomatosis. >10 lesions, loss of signal on out of phase
Cholangiocarcinoma risk factors
- liver flukes
- heaptolithiasiss, recurrent pyogenic cholangitis
- PSC
- cirrhosis
- HBV, HCV
- Caroli disease

Mass-forming cholangiocarcinomas:
- are typically homogeneously low in attenuation on noncontrast scans, and demonstrate heterogeneous minor peripheral enhancement with gradual centripetal enhancement .
- progressive enhancement (degree of enhancement depends on amount of fibrosis)
- capsular retraction may be evident. The bile ducts distal to the mass are typically dilated.
Although narrowing of the portal veins - or less frequently, hepatic veins - is seen, unlike HCC, cholangiocarcinoma only rarely forms a tumor thrombus
Lobar or segmental hepatic atrophy is usually associated with vascular invasion






What is an intrahepatic cholagniocarcinoma
adenocarcinoma of the intrahepatic bile ducts




second most common hepatic malignancy
intrahepatic cholangiocarcinoma
differential for liver mass with progressive enhancement
peak age of intrahepatic cholangiocarcinoma
seventh decade of life

large HCC
multiple peripheral lesions demonstrating progressive filling, “lollipop sign”
epithelioid hemangioendothelioma
demographics for epithelioid hemangioendothelioma
middle aged women

biliary cystadenoma


name the sequence

T1 fat sat precontrast
