Radiology Notes

My notes during radiology residency, fellowship, and beyond…

Archive for the ‘stomach’ Category

Emphysematous Gastritis

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  • gas within stomach wall
  • causes
    • gas forming organisms: e coli, clostridium perfringens
    • gastric obstruction with increased pressure
    • severe vomiting
    • ischemia
    • infection
    • corrosive ingestion
  • corticosteroid use risk factor

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Written by lmwong

January 17, 2010 at 8:58 am

Posted in abdomen, gi, stomach

Postoperative Stomach Differential

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  • Marginal Ulcer
  • Afferent loop syndrome
  • Blown duodenal stump
  • Jejunogastric intussusception
  • Gastric remnant bezoar
  • Postgastrectomy carcinoma
  • Bile reflux gastritis

Written by lmwong

January 17, 2010 at 8:46 am

Gastric Volvulus

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  • commonly associated with esophageal or paraesophageal hernia
  • ~ phrenic nerve palsy, asplenia, polysplenia, diaphragmatic eventration
  • stomach normally fixed by gastrocolic and gastrosplenic ligaments and by second duodenum
  • 2 types
    • organoaxial
      • along horizontal or vertical axis of stomach
      • seen in neglected hernias in elderly
    • mesenteroaxial
      • along axis of less and greater curvature of stomach
      • less common
      • high incidence of strangulation and ischemia

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Written by lmwong

January 11, 2010 at 11:22 pm

Posted in abdomen, gi, stomach

Zollinger-Ellison syndrome

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  • gastrin-secreting islet cell tumor of stomach
  • hypersecretion of hydrochloric acid
  • mets to liver and lymph nodes, 50% at presentation
  • primary hypervascular tumor in pancreas
  • thickened stomach folds, ulcers
  • octreotide scan diagnostic

Written by lmwong

January 6, 2010 at 9:49 am

Posted in abdomen, gi, stomach

Stomach Narrowing Differential

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Benign

  • peptic scarring
  • corrosive ingestion
  • granulomatous disease (Crohn disease, sarcoidosis, tuberculosis, syphilis, eosinophilic gastroenteritis)

Malignant

  • Scirrhous adenocarcinoma
  • metastases
  • Lymphoma

Written by lmwong

April 30, 2008 at 2:00 pm

Stomach Filling Defects Differential

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Benign Tumors

  • Polyp
  • GIST
  • Lipoma

Malignant Tumors

  • Adenocarcinoma
  • Malignant GIST
  • Metastases
  • Lymphoma

Nonneoplastic

  • ectopic pancreatic rest
  • Bezoar
  • Fundoplication defect
  • Varices

Written by lmwong

April 30, 2008 at 1:58 pm

Stomach Ulcer Lesions Differential

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Nonneoplastic

  • Superficial gastric erosion
  • peptic or medication-induced ulcers

Tumors

  • adenocarcinoma
  • Gastrointestinal stromal tumor
  • lymphoma
  • metastases

Written by lmwong

April 30, 2008 at 1:56 pm