Liver Masses

Question 1

Mc malignant mass in liver

Answer 1

Mets

Multiplicity of lesions favors mets

Question 2

Hepatic mets most commonly originate from

Answer 2

GI
Breast
Lung

Question 3

Most characteristic feature of mets in post contrast CT and MR

Answer 3

Band like peripheral enhancement “target lesion”

Question 4

Mc benign liver neoplasm

Answer 4

Cavernous hemangioma

Question 5

Mcc liver mass

Answer 5

Mets

Question 6

Well defined uniformly hyperechoic massin 80%

Benign

Answer 6

Cavernous hemangioma

Question 7

Retain contrast on delayed images

Slow flow within the lesion

Answer 7

Cavernous hamangioma

Question 8

Early and progressive contrast washout

Answer 8

HCC

Hypervascular mets

Question 9

Cavernous hemangioma on ct

Answer 9

Discontinuous pattern of anhancement from the periphery of the lesion

Question 10

Mc primary malignancy of the liver

Answer 10

Hepatocellular carcinoma

Question 11

Hepatomas have major growth patterns

Answer 11

Solitary massive

Multinodular

Diffuse HCC

Question 12

Classic and most common appearance of HCC on MR

Answer 12

Low signal on T1W1

High signal on T2W2

Arterial enhancement and venous washout

Question 13

Essential imaging finding for radiologic diagnosis of HCC

Answer 13

Arterial phase enhancement

Homigenous for small lesions, heterogenous for large lesions

Question 14

Normal or increased radionuclide activity on technetium sulfor colloid liver-spleen scan

Answer 14

Focal nodular hyperplasia

Because of kupffer cells

Question 15

Mc in women on long term oral contraceptives

Benign taht carry risk of life threatening hemorrhage and potential for malignant degeneration

Answer 15

Hepatic adenoma

Question 16

Benign solid mass consisting of abnormally arranged hepatocytes, bile ducts and kupffer cells

Answer 16

Focal nodular hyperplasia

Question 17

Multiple adenomas >10

Answer 17

Liver adenomatosis

Question 18

Hepatocellular malignancy

Large liver mass in adolescent or yound adult (23 yo mean age)

Without elevated AFP levels

Answer 18

Fibrolamellar carcinoma

Question 19

Fibrolamellar carcinoma characteristics

Answer 19

Large, lobulated hepatic mass with central scar and calcifications

Question 20

Charterisctic enhancing stellate central scar

Answer 20

Fibrolamellar hepatocellular carcinoma

Question 21

Hereditary hemorrhagic telangiectasia

Answer 21

Osler-weber-rendu syndrome

Question 22

Autosomal polycistic disease

Answer 22

Polycystic liver disease

Question 23

Small benign neoplasms consisting of dilated cystic branching bile ducts

Answer 23

Bile duct hamartomas ( von metenburg complexes)

Question 24

Rare cystic neoplasm of the biliary epithelium

Answer 24

Biliary cystadenoma

Question 25

Anchovy paste

Answer 25

Amebic abscess

Common in right lobe, elevates right hd

Question 26

Daughter cyst may be visualized within a cyst

Answer 26

Hydatid cyst

Question 27

Hereditary hemorrhagic telangiectasia

Answer 27

Osler-weber-rendu syndrome

Question 28

Autosomal polycistic disease

Answer 28

Polycystic liver disease

Question 29

Small benign neoplasms consisting of dilated cystic branching bile ducts

Answer 29

Bile duct hamartomas ( von metenburg complexes)

Question 30

Rare cystic neoplasm of the biliary epithelium

Answer 30

Biliary cystadenoma

Question 31

Anchovy paste

Answer 31

Amebic abscess

Common in right lobe, elevates right hd

Question 32

Daughter cyst may be visualized within a cyst

Answer 32

Hydatid cyst