Malignancies of the Biliary tree

Question 1

Pathognomic features of periampullary villous adenoma on UGI

Answer 1

soap bubble or paint brush sign

Question 2

gallbadder polyps > what size should not be observed

Answer 2

1cm

Question 3

criteria for unresectability of hilar cholangiocarcinoma:

Answer 3

1. locally advanced involving bilateral hepatic arteries or portal vein
2. unilateral vascular involvement with extensive contralateral ductal spread
3. involvement of the main portal vein
4. involvement up to secondary order biliary radicles

Question 4

which hilar cholangiocarcinomas should be considered for transplant?

Answer 4

those that are unresectable but have no extrahepatic metastases

Question 5

CT findings of intrahepatic cholangiocarcinoma:

Answer 5

low attentuation mass with minor peripheral enhancement and dilation of bile ducts distal to mass

Question 6

frozen section findings of gallbladder adenomyoma

Answer 6

atypical cells and cystic spaces

Question 7

Two most common risk factors for development of cholangiocarcinoma:

Answer 7

primary sclerosing cholangitis and fibropolycystic liver disease (choledochal cysts)

Question 8

True or false. Approximately 50% of port site metastasis occur at nonextraction ports for gallbladder cancer.

Answer 8

true

Question 9

True or false. Port site excision decreases port site metastasis for gallbladder cancer.

Answer 9

false