Pernicious anemia

• Facts:
  Autoantibodies to parietal cells (anti-intrinsic factor)
  MCC for B12 deficiency
• History / PE:
  Glossitis
  Peripheral neuropathy
• Diagnosis:
  Measure intrinsic factor antibodies titers
  Abnormal Schilling test
• Complications:
  Chronic atrophic gastritis
  Gastric adenocarcinoma
• Associated With:
  Vitamin B12 deficiency
  Type A gastritis