Subacute combined degeneration of the spinal cord in a vegan

We present a case of myelopathy and neuropathy by vitamin B12 deficiency in a vegan. MRI and neurophysiological studies showed spinal cord and peripheral nerves damage. Neurological disturbances, neurophysiological and spinal cord MRI abnormalities disappeared after cyanocobalamin treatment. Vegans should be informed about the potential risk for their health and take daily supplements of vitamin B12 for life. Neurologists should consider vitamin B12 deficiency in vegans who develop signs of myelopathy and/or peripheral neuropathy, to make a timely diagnosis and avoid irreversible neurological damages