Subacute combined degeneration (SCD) is a rare neurological complication of vitamin B12 deficiency, characterized by demyelination of the dorsal and lateral spinal cord. Herein, we describe three cases, who presented with SCD, one related to reduced intake of vitamin B12 because of a vegetarian diet and two related to nitrous oxide exposure during surgery. MR images of our patients revealed sym...

It was confirmed by fecal excretion test and Schilling's urinary excretion test using vitamin B@12 labelled with @60Co (@60Co-B@12) that the intestinal absorption of vitamin B@12 was markedly disturbed in patients with pernicious anemia. When @60Co-B@12 was given by mouth together with hog intrinsic factor in patients with pernicious anemia, the intestinal absorption of @60Co-B@12 was restored ...