Autoimmunity
H. pylori, environmental insults
NSAIDs, bile? Other agents
Radiation injury
Idiopathic, gluten, drugs (ticlopidine)?
H. pylori
Crohn’s disease, sarcoidosis, Wegener’s
granulomatosis and other vasculitides,
foreign substances, idiopathic
Food sensitivity? Other allergies
Bacteria other than H. pylori (other gastric
helicobacters, mycobacteria and syphilis),
viruses (cytomegalovirus), fungi (Candida
spp., Histoplasma capsulatum, Mucoraceae