Which neurological symptom is commonly associated with pernicious anemia?

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Multiple Choice

Which neurological symptom is commonly associated with pernicious anemia?

Pernicious anemia causes a deficiency of vitamin B12, which leads to demyelination of the nerve pathways, especially the dorsal columns and lateral corticospinal tracts. This neurological effect commonly manifests as paresthesias—tingling or numbness in the hands and feet, and sometimes burning sensations or gait disturbances. These sensory symptoms reflect the actual nerve signal disruption from demyelination. Other options describe non-neurological or mucosal/hemicot effects. Palpitations arise from the cardiovascular response to anemia rather than nerve involvement, while anorexia is a nonspecific symptom of anemia. Glossitis can occur with B12 deficiency as a mucosal change but is not a neurological symptom.

Pernicious anemia causes a deficiency of vitamin B12, which leads to demyelination of the nerve pathways, especially the dorsal columns and lateral corticospinal tracts. This neurological effect commonly manifests as paresthesias—tingling or numbness in the hands and feet, and sometimes burning sensations or gait disturbances. These sensory symptoms reflect the actual nerve signal disruption from demyelination.

Other options describe non-neurological or mucosal/hemicot effects. Palpitations arise from the cardiovascular response to anemia rather than nerve involvement, while anorexia is a nonspecific symptom of anemia. Glossitis can occur with B12 deficiency as a mucosal change but is not a neurological symptom.

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