Duodenal obstruction
Contents
- 1 Most common cause of congenital duodenal obstruction is
- 2 Bouveret syndrome is a form of gastric outlet obstruction due to
- 3 Diagnostic modality of choice in duodenal obstruction is
- 4 All are true of duodenal diverticula except
- 5 The most common type of rotational anomalies in the midgut is
- 6 All of the following are true regarding duodenal polyps except
- 7 In short
- 8 Adenocarcinoma
- 9 Gastrinoma
- 10 Superior mesenteric artery (SMA) syndrome
- 11 Groove pancreatitis
- 12 Soap-bubble appearance on CT
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
D. ERCP
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
Adenocarcinoma accounts for about 30% of small bowel cancers and the incidence is highest in the duodenum.
Gastrinoma
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.
