Vitamin B12 malabsorption

external

• Synonyms

  • Decreased B12 absorption
  • Impaired B12 absorption

• Causes

  • Intrinsic factor deficiency
  • Tropical sprue
  • Ileal resection
  • Diffuse intestinal disease
  • Ileitis
  • Gut parasite
  • Diverticular disease
  • Malabsorption state
  • Achlorhydria
  • Pancreatic insufficiency

• Effects

  • Vitamin B12 deficiency
  • Schilling test positive