Thank you soooooo much for your help!
My m ain suspicion is AAI (atlanto-axial instability) /AOI as a result of old odontoid fracture from the accident.
My both VA and right ICA were occluded as a result, see attached. There are damages to my medulla and brain.
MND was originally suggested by local neurologists too, ruled out after seeing VA and brain images. Mostly I am improving, somehow motor is still declining very gradually, so yes, MND still a possibility. It’s the anterior part of the cord being responsible for motor functions. Other than MND, which can only be ruled out, rather then proved, I am more concerned about possibility of potential AAI/AOI related artery issue, no surgery done, so it may still not be stable…
Just can’t find solid proof, and hospital visits are too rough, so digging into my MRI files.
By the way, my odontoid retro-flexion might be an issued, I had strong electric shock while my head turning left.
You have been amazing in helping people with the most precious extra mile most medical practitioner fail to comprehend / address, thank you again for being an angle!