harvard gi jejunum and iliem.txt

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Author:
tyvachon
ID:
79514
Filename:
harvard gi jejunum and iliem.txt
Updated:
2011-04-13 22:59:02
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radiology resident gi
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radiology resident gi
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  1. Adynamic ileus: PIMM
    postoperative (#1); inflammatory (often sentinel loop) � pancreatitis, appendicitis, cholecystitis, diverticulitis, peritonitis; metabolic � low K+, Ca++, Mg++; medication � morphine
  2. Mechanical SBO:
    adhesion, hernia, tumor, gallstone, inflammation with strictures
  3. Malabsorption patterns: dilatation, dilution, delay; predominantly thick/irregular folds �
    • Whipple�s, MAI, Strongyloides (proximal), amyloid, Giardia (jejunum), GVH, Cryptosporidium (jejunum), lymphoma, lymphangiectasia, mastocytosis, eosinophilic gastroenteritis;
    • Malabsorption patterns: dilatation, dilution, delay predominantly dilated loops and normal folds �
    • sprue (#1), obstruction, ileus, scleroderma, medication
    • Thick folds without malabsorption pattern: criteria �
    • folds >3mm, uniformly thickened if diffuse, nodular thickening (pinkyprinting) if focal with stack of coins appearance;
    • Thick folds without malabsorption pattern: submucosal edema �
    • ischemia, infection, radiation, hypoproteinemia, GVH;
  4. Thick folds without malabsorption pattern: submucosal tumor �
    lymphoma, leukemia,
  5. Thick folds without malabsorption pattern: submucosal hemorrhage �
    Henoch-Schonlein purpura, hemophilia, anticoagulation
  6. Tubular bowel:
    Cryptosporidium, sprue (proximal), lymphoma, GVH, radiation, ischemia, Strongyloides (proximal)
  7. Nodules:
    mastocytosis, nodular lymphoid hyperplasia, lymphoma, mets, polyps, Crohn�s, eosinophilic gastroenteritis, TB, infection, amyloid, lymphangiectasia, Whipple�s, Waldenstrom�s macroglobulinemia
  8. Diffuse tiny nodules:
    lymphoid hyperplasia (#1), hypogammaglobulinemia, Giardia, Whipple�s, Waldenstrom�s
  9. Small bowel tumors: benign �
    adenoma (#1), leiomyoma (#2), lipoma, hemangioma, neurogenic tumors, Brunner gland hyperplasia, heterotopic pancreatic tissue;
  10. Small bowel tumors: malignant �
    mets (melanoma, RCC, breast, KS), lymphoma, carcinoid (#1 primary tumor), leiomyosarcoma (large ulcerating), adenocarcinoma; polyposis syndromes
  11. Small bowel stricture:
    Crohn�s, lymphoma, mets, infection, radiation, ischemia, adenoCA, extrinsic compression, NSAIDs; focal stricture with shouldering � adenoCA (#1), breast mets, TB
  12. Coiled spring:
    intussusception, intramural hematoma
  13. Large ulcerated mass (endoexoenteric):
    lymphoma, leiomyosarcoma, mets (melanoma), interloop abscess
  14. Diverticula:
    small bowel, Meckel�s
  15. Intraluminal filling defects:
    parasites (Ascaris, tapeworm), bezoar, foreign body, gallstone, lipoma
  16. Enteric fistulas:
    Crohn�s, diverticulitis, CA, TB, radiation, surgery, iatrogenic
  17. Serosal:
    carcinoid, serosal mets, diverticulitis, appendicitis, endometriosis
  18. Mesenteric bowel ischemia: occlusive �
    emboli (afib, LV aneurysm), arterial thrombosis (atherosclerosis), venous thrombosis (portal HTN, pancreatitis, tumor, hypercoagulable state, drugs);
  19. Mesenteric bowel ischemia: nonocclusive �
    low flow state
  20. Shortened transit time:
    anxiety, hyperthyroid, medication (reglan), partial SBO

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