Not sure if this relates or helps, but I had a few EMG/Nerve studies, and see a neurologist on a regular basis only recently, and do have brachial plexopathy, cubital tunnel syndrome, spinal accessory neuropathy, sensory polyneuropathy, myopathy, and a few others related like toe drop, head drop, reflex loss, paralysis, atrophy, balance, falling issues, and such, which I just judge as one in the same, and needed no tests to tell me so.

My issues started or were exacerbated after chemo only in 2009, which resulted septic shock, cachexia, other major side effects, including paralysis for almost a year from the waist down, and then others like brachial plexopathy were from the numerous neck dissections when nerves, muscle, and carotid artery removed, and radiation totaling over 200Gy to the same area. I don't have carotid blockage shown from the 3-D ultrasound, thankfully.

I specifically asked if I had lower motor neuron disease, and was told no, but said I have so many complications it's difficult to say which is the cause.