Kuo SC, Yeh CB, Yeh YW, Tzeng NS
Schizophrenia-like psychotic episode precipitated by cobalamin deficiency. [Journal Article]
Gen Hosp Psychiatry 2009 Nov-Dec; 31(6):586-8.
Although cobalamin deficiency is widely known and usually presents with hematologic and neuropsychiatric manifestations, the psychiatric symptoms are not usually the predominant manifestation. We describe a young single male vegetarian who developed a cobalamin-induced psychotic episode without preceding neurologic manifestations and without any hematologic symptoms. He recovered after a short course of antipsychotics and oral cobalamin supplementation and remained asymptomatic and functionally independent at 1 year of follow-up.
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