the liver

Question 1

what is the normal liver length along the right surface?

Answer 1

15 to 17 cm

Question 2

what separates the left lobe from the caudate lobe?

Answer 2

ligamentum venousum

Question 3

what lies within the main lobar fissure?

Answer 3

middle hepatic vein

Question 4

the anatomic quadrate lobe is what segmental division if the liver?

Answer 4

medial segment of the left lobe

Question 5

if the sonographer is locating a mass within the right posterior segment of the liver, which vessel separates the right anterior liver segment from the right posterior liver segment?

Answer 5

right hepatic vein

Question 6

which of the following statements differentiates between the hepatic and portal veins?

Answer 6

hepatic veins are intersegmental while portal veins are intrasegmental

Question 7

which of the following are both interlobar and intersegmental?

Answer 7

hepatic veins

Question 8

which of the following supplies oxygenated blood to the liver?

Answer 8

hepatic Artery

Question 9

which of the following is a live function?

Answer 9

production of clotting factors

Question 10

what is the liver segment location for the echogenic mass consistent with a hemangioma if it is seen just anterior to the middle hepatic vein?

Answer 10

medial segement left lobe

Question 11

which of the following laboratory tests evaluates liver function?

Answer 11

alkaline phosphate

Question 12

what pathology should the sonographer look for specifically on the abdominal sonography examination on a patient with an indication of an elevated AFP?

Answer 12

hepatocellular carcinoma

Question 13

what is a typical characteristic of an intrahepatic mass ?

Answer 13

displaces hepatic vessels

Question 14

which of the following is a diffuse liver disease?

Answer 14

hepatitis

Question 15

which of the following statements regards fatty infiltration of the liver?

Answer 15

focal fatty infiltration may be mistaken for a liver mass

Question 16

a 65 year old man presents with elevated liver function tests. the sonography examination reveals a shrunken, echogenic right lobe, a relatively enlarged caudate lobe and the liver contour is irregular. what is most likely the diagnosis?

Answer 16

cirrhosis

Question 17

which benign liver tumor commonly occurs in patients with glycogen storage disease?

Answer 17

adenoma

Question 18

if you are having trouble visualizing the posterior portion of the liver in a patient with fatty infiltration, which of the following may help?

Answer 18

lowering the frequency

Question 19

in focal fatty sparing, normal tissue appears more hypo echoic than the surrounding liver tissue and may be mistaken for a mass. what is the typical location for this ti occur

Answer 19

region of the portal hepatis near the gallbladder

Question 20

what does a person with cirrhosis have a higher incidence of developing?

Answer 20

hepatoma

Question 21

which of the following may be seen in patients with late state cirrhosis?

Answer 21

hepatofugal flow in the portal vein

Question 22

what is most likely the diagnosis when the sonographic appearance is a mother cysts containing multiple daughter cysts?

Answer 22

echinococcal cyst

Question 23

a 38 year old woman presents postcholecystectomy with RUQ pain, fever, and an elevated white count. what is the most likely diagnosis if the sonography examination reveals an irregular, hypoechoic mass with posterior enhancement in the region of the porta hepatis?

Answer 23

pyogenic abscess

Question 24

patients with AIDs are at greater risk of acquiring which liver pathology ?

Answer 24

fatty liver infiltration

Question 25

what is the most likely diagnosis if a 30 year old women presents for an abdominal sonogram to rule out the presence of gallstones and the examination reveals a well defined, 2cm , solitary, echogenic mass in the posterior right lobe?

Answer 25

cavernous hemanigioma

Question 26

what is most likely the diagnosis of a well defined, highly echogenic liver mass in the right posterior segment with an artifact causing the portion of the diaphragm directly distal to the mass to appear discontinuous with the remainder of the diaphragm?

Answer 26

hepatic lipoma

Question 27

what is most likely the diagnosis for a 60 year old man with a history of alcoholic cirrhosis, increasing abdominal girth, and jaundice with the sonography examination revealing ascites, multiple hyperechoic lesions seen through out the liver, and a tumor with the portal vein?

Answer 27

hepatocellular carcinoma

Question 28

which of the following would rule out either a congenital or acquired hepatic cystic lesions?

Answer 28

distal acoustic shadowing

Question 29

what is most likely the diagnosis on a patient with RUQ pain and a normal sonography examination except in the right liver lobe there is a single, well circumscribed anechoic lesion with posterior enhancement?

Answer 29

simple liver cyst

Question 30

what is a recanalized paraumbilical vein typically the result of?

Answer 30

portal hypertension

Question 31

which of the following is a disadvantage of using contrast enhanced ultrasound?

Answer 31

two or three people are required to perform the study

Question 32

which of the following is an advantage of using contrast enhanced enhance sound?

Answer 32

it can be used on patients allergic to CT and MRI contrast agents

Question 33

what determines why contrast images are obtained at a lower acoustic pressure setting?

Answer 33

mechanical index

Question 34

what is the main clinical indication for liver elastography ?

Answer 34

stage the degree of fibrosis in cases of chronic liver disease.