title: A case of mania secondary to vitamin B12 deficiency.
abstract: A case of mania apparently secondary to vitamin B12 deficiency appeared without other overt clinical features of pernicious anemia and resolved with B12 replacement. Six months later, the patient was receiving monthly B12 injections and his mental status remained normal.
mesh_terms: D000368:Aged; D001714:Bipolar Disorder / Q000209:etiology* / Q000523:psychology; D006801:Humans; D008297:Male; D019965:Neurocognitive Disorders / Q000209:etiology* / Q000523:psychology; D014805:Vitamin B 12 / Q000627:therapeutic use; D014806:Vitamin B 12 Deficiency / Q000150:complications* / Q000188:drug therapy
chemical_list: D014805:Vitamin B 12