Duodenal obstruction

Most common cause of congenital duodenal obstruction is

A. Type I atresia of duodenum
B. Annular pancreas
C. Type III duodenal atresia
D. Duodenal diaphragm

Bouveret syndrome is a form of gastric outlet obstruction due to

A. Dysmotility disorders
B. Gallstones
C. Malrotation
D. Trichobezoar

Diagnostic modality of choice in duodenal obstruction is

A. MR enterography
B. Upper GI endoscopy
C. Multidetector CT

All are true of duodenal diverticula except

A. Perforation is quite common in diverticula of the duodenum
B. Most of these diverticula are present in the periampullary region
C. 90% of cases are asymptomatic
D. Can obstruct the ampulla of Vater

The most common type of rotational anomalies in the midgut is

A. Non-rotation
B. Incomplete rotation
C. Reverse rotation
D. Anomalous fixation of the mesentery

All of the following are true regarding duodenal polyps except

A. Villous polyps are considered premalignant
B. Soap-bubble appearance on CT suggests hemangiomatous polyps
C. Osler-Weber-Rendu disease is associated with mucosal polyps
D. Duodenal polyps are usually less than 2 cm

In short


Adenocarcinoma accounts for about 30% of small bowel cancers and the incidence is highest in the duodenum.


Neuroendocrine tumors like gastrinoma are associated with excess gastrin production, the majority is localized in the pancreas, around 15% are located in the duodenum that forms the part of the so-called gastrinoma triangle.

Superior mesenteric artery (SMA) syndrome

Superior mesenteric artery (SMA) syndrome is a rare disease defined as compression of the third portion of the duodenum. It is commonly associated with debilitating illnesses like AIDS and other conditions with extreme weight loss (following bariatric surgery, paraplegia, prolonged bed rest, and drug abuse.

Groove pancreatitis

Groove pancreatitis is a form of segmental pancreatitis that can lead to acute fluid collection and inflammation, which can lead to duodenal/bile duct stenosis.

Soap-bubble appearance on CT

Villous polyps are considered premalignant, and they have a characteristic soap-bubble appearance on CT or contrast studies.

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