the liver Flashcards
what is the normal liver length along the right surface?
15 to 17 cm
what separates the left lobe from the caudate lobe?
ligamentum venousum
what lies within the main lobar fissure?
middle hepatic vein
the anatomic quadrate lobe is what segmental division if the liver?
medial segment of the left lobe
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?
right hepatic vein
which of the following statements differentiates between the hepatic and portal veins?
hepatic veins are intersegmental while portal veins are intrasegmental
which of the following are both interlobar and intersegmental?
hepatic veins
which of the following supplies oxygenated blood to the liver?
hepatic Artery
which of the following is a live function?
production of clotting factors
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?
medial segement left lobe
which of the following laboratory tests evaluates liver function?
alkaline phosphate
what pathology should the sonographer look for specifically on the abdominal sonography examination on a patient with an indication of an elevated AFP?
hepatocellular carcinoma
what is a typical characteristic of an intrahepatic mass ?
displaces hepatic vessels
which of the following is a diffuse liver disease?
hepatitis
which of the following statements regards fatty infiltration of the liver?
focal fatty infiltration may be mistaken for a liver mass
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?
cirrhosis
which benign liver tumor commonly occurs in patients with glycogen storage disease?
adenoma
if you are having trouble visualizing the posterior portion of the liver in a patient with fatty infiltration, which of the following may help?
lowering the frequency
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
region of the portal hepatis near the gallbladder
what does a person with cirrhosis have a higher incidence of developing?
hepatoma
which of the following may be seen in patients with late state cirrhosis?
hepatofugal flow in the portal vein
what is most likely the diagnosis when the sonographic appearance is a mother cysts containing multiple daughter cysts?
echinococcal cyst
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?
pyogenic abscess
patients with AIDs are at greater risk of acquiring which liver pathology ?
fatty liver infiltration
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?
cavernous hemanigioma
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?
hepatic lipoma
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?
hepatocellular carcinoma
which of the following would rule out either a congenital or acquired hepatic cystic lesions?
distal acoustic shadowing
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?
simple liver cyst
what is a recanalized paraumbilical vein typically the result of?
portal hypertension
which of the following is a disadvantage of using contrast enhanced ultrasound?
two or three people are required to perform the study
which of the following is an advantage of using contrast enhanced enhance sound?
it can be used on patients allergic to CT and MRI contrast agents
what determines why contrast images are obtained at a lower acoustic pressure setting?
mechanical index
what is the main clinical indication for liver elastography ?
stage the degree of fibrosis in cases of chronic liver disease.
