Stomach

Question 1

GASTRITIS

Answer 1

• Erosive gasritis (corrosives, alcohol, stress, drugs)
• Granulomatous gastritis (Crohn’s, sarcoid, syphilils, TB, histoplasmosis)
• Eosinophilic gastritis (peripheral eosinophilia, 60%, hypoalbuminemia)
• Hypertrophic gastritis
  
  • Menetrier’s disease
  • Zollinger-Ellison syndrome
  • Idiopathic
• Recurrent gastric ulcer
  
  • Zollinger-Ellison syndrome
  • PUD
  • Retained gastric antrum
  • Drugs
• Misc
  
  • Radiation
  • Ulcer
  • Corrosives
  • Rare–pseudolymphoma, suture line ulceration, intraarterial chemo.

Question 2

Target (Bull’s Eye) Lesions

Answer 2

Ulcer surrounded by a radiolucent halo, multiple

Gastritis (aphthoid type, tiny ulcer)

• Erosive: NSAID, alcohol
• Granulomatous: Crohn’s disease
• Infecitons: candidias, herpes, syphilis, CMV

Submucosal metastases (large ulcer)

• Melanoma, Kaposi sarcoma >> all other metastases (breast, lung, pancreas)
• Lymphoma

Solitary, giant bull’s eye (very large ulcer)

• Leiomyoma
• Sarcoma