subacute combined degeneration of spinal cord

n.
  1. The degeneration of the posterior and lateral columns of the spinal cord caused by a deficiency of vitamin B12 and usually associated with pernicious anemia, resulting in a prickling or burning sensation of the skin and a loss of coordination.Putnam-Dana syndrome vitamin B12 neuropathy
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.