Table 64.2.

Gastrointestinal Diseases in Selective IgA Deficiency

Type of Disease	Examples
Infectious	Giardia, Campylobacter, Clostridium, Salmonella, rotavirus, bacterial overgrowth
Inflammatory	Nodular lymphoid hyperplasia, Crohn's disease, celiac disease, ulcerative colitis, pancreatic insufficiency, cholelithiasis, villous atrophy, food allergy, lactose intolerance
Autoimmune	Pernicious anemia, aphthous stomatitis, autoimmune hepatitis, primary biliary cirrhosis, achlorhydria, Henoch-Schönlein syndrome, antiepithelial antibody leading to villous atrophy
Neoplastic	Lymphoma, adenocarcinoma of the stomach