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Gastritis:
H pylori, erosive gastritis (corrosives, alcohol, stress, NSAIDS), granulomatous (Crohn�s, sarcoid, TB, histo, syphilis), eosinophilic, hypertrophic (Menetrier�s, ZE syndrome), recurrent gastric ulcer (ZE syndrome, PUD, drugs), radiation, emphysematous
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Target lesions: gastritis (aphthoid type) �
erosive (NSAID, alcohol), Crohn�s, infection (Candida, herpes, CMV);
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Target lesions: submucosal mets (large ulcer) �
melanoma, KS > breast, lung, lymphoma;
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Target lesions: solitary giant bullseye (very large ulcer) �
leiomyoma, sarcoma, CA, solitary met, ectopic pancreas, benign ulcer
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Filling defect:
bezoar, adenocarcinoma, lymphoma, leiomyosarcoma, mets, KS, endometriosis, carcinoid, leiomyoma, lipoma, polyps (hyperplastic #1), varices, ectopic pancreas, extrinsic compression from spleen/pancreas/liver
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Giant rugal folds:
lymphoma, Menetrier�s, ZE syndrome, gastritis, eosinophilic gastroenteritis, radiation, infection, Crohn�s, mets, varices (mimic)
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Linitis plastica:
scirrhous CA (#1), lymphoma, mets (esp breast), pancreatic CA (direct invasion), radiation, Crohn�s, eosinophilic gastroenteritis, corrosive ingestion, TB, sarcoid, syphilis
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Antral lesions:
adenocarcinoma, lymphoma, mets, Crohn�s, PUD, TB, sarcoid, HPS, pylorospasm, antral web, ectopic pancreas, erosive gastritis, caustics
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Double pylorus:
lesser curve antral ulcer, Crohn�s, lymphoma
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Gastroenteric fistula:
PUD, Crohn�s, CA, iatrogenic, surgery
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Free air:
surgery and laparoscopy, perforated ulcer, perforated distal bowel (IBD, diverticulitis, tumor)
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UGI surgery:
plication defect, marginal ulcer, bezoar, chronic gastritis, leak, obstruction, intussusception (jejunogastric), gastric CA, afferent loop syndrome, malabsorption
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