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Filling defects: benign (often 1st portion, asx) �
adenoma, leiomyoma, lipoma, villous adenoma, ectopic pancreas;
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Filling defects: malignant (often distal to 1st portion, sx) �
adenocarcinoma at or distal to papilla, leiomyosarcoma, lymphoma, mets (melanoma, breast, KS, carcinoid);
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Filling defects: bulb �
ectopic gastric mucosa, prolapsed antral mucosa, Brunner gland hyperplasia, varices, duodenitis, Crohn�s, lymphoma, sprue, CF, polyposis, benign tumors;
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Filling defects: distal �
benign lymphoid hyperplasia, ectopic pancreas, annular pancreas, ampulla of Vater, tumor, edema with impacted or passed gallstone, choledochocele;
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Filling defects: soft and changing �
choledochocele, lipoma, duplication cyst
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Target lesion:
leiomyoma, leiomyosarcoma, met (melanoma, KS, breast, lung, lymphoma), ulcer, ZE syndrome
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Luminal outpouchings:
ulcer, diverticulum, choledochoduodenal or cholecystoduodenal fistula
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Reverse figure 3 sign:
pancreatitis, pancreatic CA
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Notched duodenum:
annular pancreas, post-bulbar ulcer, Crohn�s, post-op, pancreatitis, pancreatic CA
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Postbulbar narrowing:
adenocarcinoma, lymphoma, mets, postbulbar ulcer, duodenitis, Crohn�s, pancreatitis (extrinsic), pancreatic CA, annular pancreas, intramural diverticulum, duodenal duplication cyst, duodenal hematoma, aortic aneurysm, SMA syndrome (seen in scleroderma, lymphoma)
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Papillary enlargement:
>15mm; normal variant, choledochocele, papillary edema (pancreatitis, acute duodenal ulcer, impacted stone), ampullary CA
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