Flashcards in Biliary System Deck (45):
Which ducts join to form the CHD?
right and left hepatic ducts
Which ducts join to form the CBD?
cystic duct and CHD
Which ducts join to form the ampulla of Vater?
CBD and Duct of WIrsung in the pancreas
What does the portal triad consist of?
What do the valve of Heister's control?
controls the bile flow in the cystic duct
What is Hartmann's pouch?
abnormal sacculation of the neck of the GB
What is a phrygian cap?
fold between the body and fundus
What is a junctional fold?
fold between the body and neck
Where does the ampulla of Vater empty into?
passes through the sphincter of Oddi into the duodenum
What is normal GB wall thickness?
less than 3 mm
What are causes of GB wall thickening?
congestive heart failure
What is sludge associated with?
cystic duct obstruction
What is a gallbladder filled with stones called?
What features are present with acute cholecystitis?
diffuse wall thickening
What is considered chronic cholecystitis?
history of multiple episodes of acute cholecystitis, sonographically the same as acute cholecystitis
What is emphysematous cholecystitis?
acute cholecystitis due to wall ischemia and infection
What is empyema of the gallbladder?
pus within the gallbladder
What is gallbladder perforation?
localized fluid collection in the gb fossa
What is acalculous cholecystitis?
acute cholecystitis without gallstones
What is a porcelain gallbladder?
calcification of the gallbladder wall
What is hydrops of the gallbladder?
What size of gallbladder polyps are considered benign?
< 10 mm
What is cholesterolosis?
lipids deposited into the gallbladder wall appearing like polyps
What are the sonographic findings of gallbladder carcinoma?
asymmetric wall thickening
mass that fills the gb
What is adenomyomatosis?
hyperplastic changes involving the gallbladder wall forming a thickened wall and diverticula
What artifact is associated with adenomyomatosis?
Where in the biliary tract is biliary obstruction most common?
What are the 2 most common reasons for biliary obstruction?
carcinoma of the head of the pancreas
Obstruction of the biliary tract would elevate which lab values?
What is a normal measurement of the CBD postcholecystectomy?
up to 10 mm
What is it called when the dilated hepatic duct is parallel to the portal vein?
What is choledocholithiasis?
calculi present in the bile ducts
What are symptoms of choledocholithiasis?
What is Mirizzi Syndrome?
extrahepatic biliary obstruction due to a stone in the cystic duct
What is a common finding with cholangiocarcinoma?
What is cholangitis?
bacterial infection caused from obstruction of the biliary tree.
When is biliary atresia suspected?
when jaundice persists beyond 14 days old
What is pneumobilia?
air in the biliary tract
What findings are seen with pneumobilia?
echogenic foci with comet-tail reverberation
What is a choledochal cyst?
cystic dilitation of the bile ducts
What are the sonographic findings of choledochal cysts?
two cystic structures in the GB and CBD
What is Caroli's disease?
congenital anomaly where there is dilitation of the intrahepatic ducts
What are the sonographic findings in Caroli's disease?
multipe cystic structures that converge towards the porta hepatis communitcating with the bile ducts
sludge and calculi can be seen
What is courvoisier gallbladder?
enlarged non-diseased GB due to obstruction of the CBD