Gallbladder and extrahepatic bile ducts

Question 1

benign mimics of malignancy

Answer 1

Luschka ducts (liver side of gallbladder)

accessory mucous glands (neck of gallbladder)

Aschoff-Rokitansky sinuses (flask-like, perpendicular to surface)

adenomyoma (gland like structures in hyperplastic smooth muscle)

Question 2

malignant mimics of benign

Answer 2

well diff gallbladder adenoca

signet ring ca

foamy gland cholangiocarcinoma

Question 3

gallbladder polyps

Answer 3

cholesterol polyp

lymphoid polyp

fibroepithelial polyp

hamartoma

heterotopia

TA/TVA/VA

Question 4

sclerosing cholangitis (types)

Answer 4

primary sclerosing cholangitis

secondary:

IgG4-related

obstruction

infection

ischaemia

Question 5

causes of obstructive sclerosing cholangitis

Answer 5

biliary atresia

choledochal cyst

cholelithiasis

chronic pancreatitis

iatrogenic

malignancy

Question 6

ampulla of Vater lesions

Answer 6

adenomas (esp in FAP)

adenomyoma

pancreatic heterotopia

Brunner gland hyperplasia/adenoma

neuroendocrine tumours

gangliocytic paraganglioma

Question 7

Answer 7

pyloric gland adenoma (intracholecystic papillary tubular neoplasm)