Pernicious anemia natural history, complications and prognosis

• People with pernicious anemia may have gastric polyps, and they are at increased risk for gastric cancer and gastric carcinoid tumors.

• Brain and nervous system (neurological) problems may continue if treatment is delayed.

• The outcome is usually excellent with treatment.

• Any damage to nerves may be permanent, especially if treatment is not started within 6 months of when symptoms began.

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