Items tagged “duodenum”
8 results found
Article
Duodenal diverticulum
Duodenal diverticula are outpouchings from the duodenal wall (intraluminal diverticulum discussed separately). They may result from mucosal prolapse or the prolapse of the entire duodenal wall and can be found at any point in the duodenum although are by far most commonly located along the media...
Article
Duodenal atresia
Duodenal atresia results from a congenital malformation of the duodenum and requires prompt correction in the neonatal period. It is considered to be one of the commonest causes of fetal bowel obstruction.
Epidemiology
The prevalence of duodenal atresia is ~1 in 5,000-10,000 newborns, and ther...
Article
Double bubble sign (duodenum)
The double bubble sign is seen in infants and represents dilatation of the proximal duodenum and stomach. It is seen in both radiographs and ultrasound, and can be identified antenatally 2.
Pathology
Causes include 1,2:
congenital obstruction
duodenal web
duodenal atresia
...
Article
Ampulla of Vater
The ampulla of Vater is a conical structure at the confluence of the common bile duct (CBD) and the main pancreatic duct that protrudes through a natural dehiscence of the duodenal wall at the major duodenal papilla into the medial aspect of the descending duodenum. The entire structure is encas...
Article
Sphincter of Oddi
The sphincter of Oddi (also known as the sphincter of ampulla or choledochal sphincter) is a complex of four smooth muscle sphincters within the duodenal wall. It surrounds, and helps fix to the duodenum, the duct of Wirsung, common bile duct and the ampulla of Vater 1,2.
When relaxed it allow...
Article
Single contrast upper GI technique
Single contrast upper GI technique is a method of imaging the esophagus, stomach, and duodenum with fluoroscopy. "Single contrast" refers to imaging with barium or water-soluble contrast only, without the addition of effervescent granules.
Indications
The single contrast upper GI study may be ...
Article
Decreased duodenal folds
Decreased duodenal folds may be seen on imaging modalities, particularly MR enterography, and differential diagnoses include:
scleroderma - usually with duodenal dilatation
celiac disease - particularly involves the distal duodenum and jejunum
Crohn disease
cystic fibrosis
amyloidosis
Article
Pancreaticoduodenal arcade
The pancreaticoduodenal arcade refers to an arterial network that links the blood flow of the celiac artery and superior mesenteric artery via the superior and inferior pancreaticoduodenal arteries.
Gross anatomy
Origin
The pancreaticoduodenal arcades originate from the superior pancreaticodu...
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