Surgery Case - Hepatic Mass Flashcards Preview

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Flashcards in Surgery Case - Hepatic Mass Deck (13)
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1
Q

Common malignant liver tumors?

A

HCC
Cholangiocarcinoma
Mets

2
Q

Common benign focal liver lesions?

A
Cysts - congenital, parasitic (echinococcal)
Cavernous hemangiomas
Focal nodular hyperplasia
Hepatic adenoma
Abscesses
3
Q

Useful imaging modalities for liver mass?

A

CT
MRI
U/S

4
Q

Best imaging modality to evaluate liver masses?

A

CT (can identify other intra-abdominal pathology, vascular involvement with CT angio)

5
Q

When is U/S useful for evaluating liver masses?

A

Intra-operatively
Doppler can help demonstrate vascularity
Carcinoma can be recognized as discrete nodules

6
Q

When is MRI useful for evaluating liver masses?

A

Vascular involvement, additional intra-abdominal lesions

7
Q

Imaging findings of hepatoma on CT?

A

Single or multiple masses or diffuse involvement
-Low attenuation lesion
-Hemorrhage, fat, necrosis, calcification, hypodense capsule or rim, enhancement seen with contrast
Can invade portal and hepatic veins

8
Q

Findings of liver cyst on CT?

A

Oval, well-defined
Imperceptible or thin wall
Water density
No enhancement

9
Q

U/S findings of liver cyst?

A

Well-defined, anechoic, may be echogenic due to fluid content

10
Q

MRI findings of liver cyst?

A

T1 hypointense

T2 marked hyperintensity

11
Q

Imaging procedure of choice to evaluate liver for mets?

A

CT (triphasic)

12
Q

Findings of fatty degeneration and liver scarring on CT?

A

Lower density than spleen
Lacelike pattern )(fibrosis)
Heterogeneity of liver parenchyma
Regenerative nodules (enhance during portal venous phase)

13
Q

Findings of cirrhosis on CT?

A

Surface nodularity
Hypertrophic left lobe
Atrophic right lobe