Unlike the stomach, duodenal polyps are usually adenomas and are precursors to adenocarcinoma . The more distal the polyp, the more likely i...
Unlike the stomach, duodenal polyps are usually adenomas and are precursors to adenocarcinoma. The more distal the polyp, the more likely it is to be an adenoma or villous adenoma.
GI stromal tumour (GIST) and pancreatic rests can occur anywhere in the duodenum, but are more common in the proximal half of the duodenum.
Patients with Gardner syndrome and familial adenomatous polyposis (FAP) are more likely to have duodenal polyps.
BARIUM FOLLOW-THROUGH
• Cauliflower/soap bubble filling defect (shouldering suggests malignancy).
• May be sessile.
• Multiple intraluminal polyps suggest a polyposis syndrome.
• The more distal the lesion, the greater the importance.
CT
• Check for lymph node enhancement—this would favour malignancy.
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