2014, Number 2
AMC 2014; 18 (2)
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ABSTRACTBackground: deficiency of vitamin B12 (cyanocobalamin) can produce some neurological disorders like peripheral neuropathy, subacute combined degeneration of spinal cord, optic neuropathy, as well as cognitive alterations that go from mild confusion to dementia or psychosis. The most frequent cause of deficiency of vitamin B12 is pernicious anemia.
Objective: to present a clinical case of dementia caused by deficit of vitamin B12.
Clinical case: a fifty-year-old male patient who is married and a self-employed worker, presented manifestations of insidious beginning with memory failure, apathy, and depression. Progressively, an inadequate conduct, delirious ideas of pursuit and spatial disorientation were added to the manifestations; that’s why he had to stop working. The mental test when admitted showed bradypsychia, apathy and a suspicious behaviour.
Conclusions: dementia caused by deficiency of vitamin B12 is a rare complaint but some cases have been reported in the medical literature.