Hematologic
Signs/symptoms of anemia
May be relatively asymptomatic due to slow onset
Signs/symptoms of pancytopenia
Neurologic
Paresthesias
Peripheral neuropathy
Dorsal column demyelination (proprioception, vibration sensation abnormalities)
Psychiatric
Depression
Psychosis
Dementia
Signs/symptoms of anemia
May be relatively asymptomatic due to slow onset
Signs/symptoms of pancytopenia
May be relatively asymptomatic due to slow onset
Paresthesias
Peripheral neuropathy
Dorsal column demyelination (proprioception, vibration sensation abnormalities)
Depression
Psychosis
Dementia
Vitamin B12 deficiency
Hemorrhage
Vitamin B7 deficiency
Hereditary
Vitamin B9 deficiency
Acquired
Vitamin A deficiency
Microangiopathic Hemolytic Anemia 