more info - NME or GME depending on what part of the brain is affected
Symptoms can vary depending on what area of the brain is affected. Some would and could include: vision loss, lameness especially in hind quarters, aggression, circling, head tilting, stumbling all of a sudden, mental deficiency, seizures. There are probably many more.
Because other illnesses can bring on many of the same symptoms, it's always recommended that if a neck or back injury is suspected to have xrays taken and infectious disease tests to rule other things out. A spinal tap is normally what is used to diagnose GME. A MRI is useful to show what's going on in the brain.
this is a VET website and why i always use it - it explains it real well the differences of NME and GME
http://www.petplace.com/dogs/granulo...gme/page1.aspx