IGg are antibodies used to fight various infections in the body. Axonal neuropathy, I believe, is a type of peripheral neuropathy, and can have many causes--it effects sensory nerves -- tingling, pins and needles, pain. CMAP and SNAP are tested via the NCV--which I THINK is a good indication that the findings aren't consistent with ALS. They can cause weakness.
The NCV is normal in ALS. No myopathy is a good thing. Basically, and Wright can confirm--it sounds like that study found mild peripheral neuropathy. What did the DOCTOR say it meant? (I am NOT a doctor)
There are a lot of neuropathies and various treatments for them. In ALS, the EMG shows denervation and reinervation. I don't see that in your results--and the NCV is generally normal. What are are these results from?