mother pancreatic lesion
mucinous cystic neoplasm (middle aged F)
elevated marker in mucinous cystic neoplasm
CEA (ovarian stroma)
most common location mucinous cystic neoplasm
tail
grandmother pancreatic lesion
serous cystadenoma
NCCN resectability of panc adenoca
- SMV/PV <180 without vein deformity
NCCN borderline resectability of panc adenoca
NCCN unresectable panc adenoca
most common pancreatic adenoca mets
liver
peritoneum
5 yr risk cancer in main duct IPMN
50-70%
1 primary hepatic malignancy
HCC
2 most common benign hepatic tumor
FNH
1 most common benign hepatic tumor
cavernous hemangioma
subtypes of hepatocellular adenomas
subtype hepatic adenoma with highest malignant transformation
beta catenin activated
difference between FNH & adenoma on hepatobiliary phase
FNH iso or hyper
adenoma hypo
genetic association with hepatic angiomyolipoma
tuberous sclerosis
most common functioning pNET
insulinoma (whipples triad)
Todani classification of bile duct cysts
I: fusiform dilation of EHD
II: true diverticulum of supraduodenal EHD
III: choledochocele (focally dilated intraduodenal segment of EHD within duodenal wall)
IV: intra and extrahepatic cystic dilations
V: Caroli dz, intrahepatic cystic dilation 2/2 AR in-utero malformation of ductal plate, central dot sign
Mirizzi syndrome
CHD and IHD dilation 2/2 extrinsic compression from stone in GB neck or cystic duct
predisposed by:
- long cystic duct running parallel to CHD
- low insertion of cystic duct into CBD
Bouveret syndrome
gastric outlet obstruction 2/2 to impaction of a gallstone in the pylorus or proximal duodenum
biliary-enteric fistulas causes & results in
causes:
results in: Bouveret syndrome, gallstone ileus
Rigler triad
seen in gallstone ileus
adenomyomatosis pathology
adenomyomatosis imaging
thickening = focal, segmental, diffuse
- segmental form: annular thickening -> strictures (“hourglass” appearance in GB mid body)
US: echogenic foci with comet tail (reverberation of US pulse within cholesterol crystals)
MRI: cystic spaces (=R-A sinuses) with curvilinear arrangement; string of beads