Gallbladder Flashcards
Children
More likely to be pigmented stones from;
- Hemolytic disease (sickle, spherocytosis, G6PD)
- Chronic disease (nutrition, burns, trauma)
Gallstones
smaller stones are more likely to be symptomatic than larger ones.
Acute attack often is precipitated by a lager or fatty meal.
Colicky pain
pts tend to move around to seek relief from the pain.
each colic is about 1-5hrs.
Stone location- lab
High AST/ALT: Common bile duct
Bilirubin level greater than 3.5mg/dL: Common bile duct or ascending cholangitis
High Amylase/ Lipase: Gallstone pancreatitis
Cholestrol stones
Large and Yellowish
Complications- Biliary colic and cholecystitis
Cholangitis Sepsis Pancreatitis Gallbladder perforation Empyema of GB Emphysematous GB GB hydrops Gallstone ileus Hepatitis Choledocholithiasis
Gallbladder perforation
When perforation is localized, it may be seen as pericholecystic fluid by U/S
U/S and Nuclear medicine studies
Gold standard studies for the diagnosis of both cholecystitis and cholelithiasis
Stones have “Posterior shadowing” or intraluminal densities.
Porcelain GB
10-30% of stones have a ring of calcium so they are Radiopaque
CT
Since bile is the same density as the stones, they miss dx by 20%. Not gooood.
Biliary scintigraphy (HIDA), nuclear medicine studies
90-100% for dx acute cholecystitis
In a typical normal study, the GB, common bile duct, and small bowel fill within 30-45mins.
Endoscopic Retrograde Cholangiopancreatography (ERCP)
U/S is merely 50-70% sensitive for choledocholithiasis. when a dilated common bile duct or elevated LFTs are present, ERCP should be considered.
Diagnostic and therapeutic by direct removal of stones.
Tx
Cholecystectomy: after the first 48hrs or after the inflammation has subsided.
Unstable pts: more urgent interventions like ERCP, percutaneous drainage, Cholecystectomy.
ERCP is followed by laproscopic cholecystectomy
Carcinoma of the GB
Predominantly affects older persons with long-standing cholecystolithiasis. 60% in the fundus of GB. No established tx protocol exists. U/S (GOLD STANDARD) CT is useful in staging the tumor.