Imaging

Question 1

If you don’t see gallstones on ultrasound but ducts are dilated what does that mean

Answer 1

Still implies obstruction

Question 2

Benign causes of obstructive jaundice

Answer 2

Gallstones
Stricture
External compression from pancreatic pseudocysts

Question 3

Malignant causes of obstructive jaundice

Answer 3

Head of pancreas tumour
Portal lymphadenopathy
Cholangiocarcinoma

Question 4

What do gallstones look like on CT

Answer 4

Some will be invisible and some will have gas inside as not all gallstones are calcified

Question 5

What do dilated ducts look like on CT

Answer 5

dark tubes

Question 6

What is the double duct sign

Answer 6

Dilated common bile duct and pancreatic duct implies head of pancreas tumour

Question 7

What is Mirizzi syndrome

Answer 7

Large gallstone in cystic duct causing compression on the common hepatic duct

Question 8

What does primary biliary sclerosis look like on ERCcp

Answer 8

Multiple biliary strictures with dilatation and have a beaded like appearance

Question 9

What do most people with primary biliary sclerosis also have

Answer 9

Ulcerative colitis