Describe two mechanisms that can lead to dilation of the common bile duct. How do gallstones appear on ultrasound? How does PSC appear on imaging studies? How does one determine whether the duct is truly obstructed as opposed to atonic? How may adenomyomatosis appear on ultrasound? Identify the following appearances on ERCP: Is cholangiocarcinoma usually intrahilar, perihilar, or distal? Is gallbladder cancer common? List nine causes of an unseen gallbladder with shadowing in the gallbladder fossa on ultrasound. List the five causes of a fixed intraluminal gallbladder mass. Name six causes of nonshadowing intraluminal gallbladder echoes on ultrasound. Using ultrasound, where should the gallbladder wall be measured? What are six causes of gallbladder wall thickening? What are six ultrasound findings in acute cholecystitis? What are the clinical features of Caroli's disease? What finding is most accurate in excluding acute cholecystitis? What imaging modality is most useful for diagnosing acalculous cholecystitis? What is Caroli’s disease? What is Klatskin's tumor? What is Mirizzi's syndrome? What is PSC (Primary Sclerosing Cholangitis)? What is a porcelain gallbladder? What is adenomyomatosis? What is ascending cholangitis? What is emphysematous cholecystitis? What is milk of calcium bile? What is the concern in these patients? What is the frequency of association with ulcerative colitis? What is the initial study that should be used to evaluate RUQ pain, and why? What is the most common primary malignancy of the biliary system? What is the sonographic Murphy's sign? What is the thickness of the normal gallbladder wall? What organisms cause cholangitis in patients with AIDS? What percentage of patients with cholecystitis have acalculous cholecystitis? What three groups of patients tend to develop acalculous cholecystitis? When is a hepatobiliary scan most helpful? Where is intrahepatic biliary duct dilation best seen in the liver? Book traversal links for Biliary ‹ What is the normal short-axis of the measurement of the pancreas? Up Describe two mechanisms that can lead to dilation of the common bile duct. ›