Myelopathy during treatment of autoimmune hemolytic anaemia.

A specific neurological syndrome resembling, subacute combined degeneration of spinal cord, has been observed to occur during treatment of autoimmune hemolytic anaemia (AHA). We propose that folate administration can precipitate this neurological syndrome in patients with subclinical deficiency of vitamin B12, a phenomenon more likely to occur in tropical countries. Such cases have not been previously reported.