Pancreas reverse Flashcards
reverse
retroperitoneal organ
lies posterior to the stomach, duodenum, proximal jejunum of the small bowel, also the transverse colon run horizontallyh acraoss the ab
contained in the anterior pararenal space
drapes across the mid aspect of the ab, just under the xyphoid process
Pancreas Anatomy
reverse
4 primary
head
neck
body
tail
pancreas segments
reverse
cradled in the C-loop of the duodenum,
IVC posterior
GDA anterolateral border
CBD posterior and lateral
pancreas head
reverse
located anterior to the IVC and posterior to the SMV
Pancreas Uncinate process
reverse
aorta
IVC
SMA
SMV
splenic vein
portal vein
Pancreas vascular landmarks
reverse
duct of Wirsung
courses entire lenght of pancreas
enters duodenum via the ampulla of vater
Main pancreatic duct
reverse
Duct of Santori
drains the anterior segment of the head
>2mm internal measurment is abnormal
pancrease accessory duct
reverse
right lateral to SMV
anterior to IVC
inferior to portal vein
Vascular structure pancreatic head
reverse
posterior to SMV
may completely surround SMV
anterior to aorta
Vascular structure Uncinate process
reverse
anterior to portal confluence
vascular structure neck
reverse
anterior to SMV
splenic vein
SMA
vascular structure body
reverse
splenic vein marks posterior border
vascular structure tail
reverse
primary duct extending entire length of pancreas
seen as 2 echogenic lines especially in neck/body
receives tributaries from the lobules
enters the duodenum with the common bile duct at the ampulla of vater
sphincter of Oddi-small muscle that guards the ampulla of vater
Duct of Wirsung
Main pancreatic duct
reverse
drains the upper anterior head
endters the duodenum at the minor papilla
2cm proximal to the ampulla of vater
just draions the head
not normally seen on ultrasound
duct of santorini
secondary duct
reverse
runs inferior in the free edge of the lesser omentum to level of the duodenum
travels posterior to the first portion of duodenum where it forms a common trunk with the pancreatic duct and opens into the duodenum
ducts have smooth muscle surrounding them to make it easier to transport the pancreatic fluid
Common bile duct
CBD
reverse
longest segment
antrum of the stomach lies anterior
Pancrease body
reverse
most difficult to visualize
course left lateral aspect of the body, extending to the hillum of the spleen
splenic vein serves as the posterior border
left kidney is posterior to the tail
pancreas tail
reverse
supplied by the splenic artery and the pancreaticoduodenal arteries
veinous drainage is through tributaries of the splenic and SMV
Pancrease vascular supply
reverse
Agenisis
pancreas divisum
ectopic
annular
Panreatic congential anomilies
reverse
missing body and tail with a large (hypertropic) head
Agenesis
reverse
lack of fusion of the dorsal and ventral pancreatic buds
pancreas divisum