Classification of Gastritis
Non-atrophic: Helicobacter pylori
Atrophic
• Autoimmune: Autoimmunity
• Multifocal atrophic: H. pylori, environmental insults
Special forms
• Chemical: NSAIDs, bile?, other agents
• Radiation Injury
• Lymphocytic: Gluten (coeliac disease), H. pylori, idiopathic, drugs
• Non-infectious granulomatous: Crohn's disease, sarcoidosis, Wegener's granulomatosis and other vasculitides, foreign substances, idiopathic
• Eosinophilic: Food sensitivity?, other allergies
• Other infections: Bacteria other than H. pylori (other gastric helicobacters, mycobacteria and syphilis), viruses (cytomegalovirus), fungi (Candida spp., Histoplasma capsulatum, Mucoraceae)
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