Liver tumors Flashcards
3
Q
A
hepatic abscesses
4
Q
A
5
Q
A
6
Q
A
8
Q
A
10
Q
A
Multifocal hepatic steatosis
11
Q
A
Focal hepatic steatosis. Vessels course through hypoattenuating lesion which does not demonstrate mass effect.
12
Q
30 yoF with no sig past medical history
A
Hepatic adenomatosis. >10 lesions, loss of signal on out of phase
13
Q
Cholangiocarcinoma risk factors
A
- liver flukes
- heaptolithiasiss, recurrent pyogenic cholangitis
- PSC
- cirrhosis
- HBV, HCV
- Caroli disease
14
Q
A
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
15
Q
A
16
Q
17
Q
A
20
Q
A
21
Q
A
25
Q
A
large HCC
29
Q
A
biliary cystadenoma
30
Q
A
31
Q
name the sequence
A
T1 fat sat precontrast
