It is softening of the spinal cord, i had to look it up also. My neurologist never mentioned it, he just looked of the cd and told me to see a neurosurgeon. I do have a copy of the mri and the cd, just not with me right now. I will post them when i go get them out of my car. I believe it is at the c5-c6 level with a bulging disk. I have the spastic gait, tingling fingers in both hands ( left hand worse), arms tingling from elbows down, arm weakness, arms and legs both jerk, plus incontinence. Thanks everyone!!!!