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DMS333-BL4
USIDMS GB
| Question | Answer |
|---|---|
| how should the GB appear on ultrasound? | anechoic with thin walls |
| what does the GB neck merge with to begin the biliary ductal system? | cystic duct |
| what are the folds of the cystic duct called? | Spiral Vales of Heister |
| what is the function of the spiral valves of heister? | helps keep GB from collapsing, helps control flow of bile |
| what is the CBD formed by? | CHD and cystic duct |
| how does the CBD travel to the pancreas? | inferior and posterior to lateral side |
| what is the function of the GB? | concentration of bile, delivery of bile to duodenum, storage of bile |
| when fats and amino acids are ingested the duodenal mucosa releases what? | cholecystokinin (CCK) |
| what is the most common GB variation? | Phrygian Cap |
| what is the function of the biliary system? | transport bile from liver to GB, transport bile from GB to duodenum |
| what is a Packed Bag or WES sign? | when GB is completely packed with stones so its hard to visualize |
| GB wall thickness should not exceed what? | 3mm |
| when looking at GB wall thickness what may cause a false positive? | ascites |
| what is the most common cause of cholecystitis? | stone impaction in cystic duct |
| what else is Courvoisier's Sign known as? | hydrops |
| what is emphysematous cholecystitis? | Gas that is produced within GB wall (produced from infection) |
| what is biliary atresia? | incomplete formation of ductal system (no cystic duct, CHD, CBD) |
| what is the most common obstructive biliary disease in infants and children? | biliary atresia |
| What is the most common cause of obstructive jaundice? | Choledochalithiasis |
| what LFT will be elevated with choledocholithiasis? | ALP |