Diseases of the Gallbladder and Biliary Tract Flashcards
what is the composition of gallstones?
cholesterol
pigment
what are the risk factors for cholesterol gallstones?
age gender multiparity oral contraceptive obesity high fat and low fibre diets cystic fibrosis ileal disease cirrhosis diabetes delayed gallbladder emptying
what are the risk factors for pigment gallstones?
hyperbilirubinbilia
gilbert syndrome
bile infection
haemolytic anaemia
what is the presentation of gallstones?
most people are asymptomatic
gallbladder in cystic or common bile duct = biliary colic
gallstone causing pancreatitis
gallstone in cystic duct causing acute cholecystitis
empyema
perforation causing peritonitis
obstruction causing jaundice
what investigations are used to diagnose gallstones?
labs: LFT’s, AST, ALT, ALP
USS/ endoscopic USS
MRCP
IV cholangiography
what treatment is given topple with gallstones?
asymptomatic then no treatment
non-operative = lithotripsy or dissolution surgery = cholecystectomy
what gender is gallstones more common in?
female
what is acute cholecystitis?
the obstruction of gallbladder emptying
in 95% of cases it is due to a gallstone
what is choledocho-lithiasis?
also known as common gallstones in the common bile duct CBD
it is when gallstones are found in the common bile duct
what is the presentation of choledocho lithiasis?
jaundice
fever due to acute/ascending cholangitis
biliary colic (abdominal pain)
acute pancreatitis
what can cause a benign biliary stricture?
iatrogenic
gallstone related
inflammation i.e. protozoal, pyogenic, primary clerking cholangitis, pancreatitis, HIV
what are the congenital causes of benign biliary tract disease?
biliary atresia
choledochal cysts
what are the 2 obstructive jaundice causing malignant tumours?
cholangiocarcinoma
cancer of the head of the pancreas
what are the different types of cholangiocarcinoma?
intra hepatic
extrahepatic
ampullary cancer
gallbladder cancer
what are the risk factors for cholangiocarcinoma?
primary sclerosis cholangitis
Inflammatory bowel disease
choledochal malformations
carcinogens i.e. aflatoxins