Well... There actually ARE CSF protein/chem tests that can lend to the diagnosis of DM in the GSD... And of course, a CT or MRI easily rules out the presence of orthopedic disease; EMG can conclusively show the loss of nerve function to each root (and show where the lesions are at on the spinal cord by the roots caudal to them won't have proper function). When combined with patient history, this is the "gold standard" for diagnosing DM. But, yes- necropsy/histopathology are the only way to give definitive diagnosis of DM- however the use of modern diagnostics gives us enough information (as proven by necropsy it was indeed DM) to definitely suggest DM. Thankfully, we've come a long way from 1973 when DM was first described as a neurological disease- and difficult to tell apart from the myriad of other spinal pathologies... Jen P & her Pack wearing the nerd hat On Sunday, August 24, 2014, Ken Tank <tanksr@xxxxxxxxx> wrote: > I could be wrong, but I thought you could only positively diagnose DM by > cross section of the spinal cord. > Not that I am by any means defending the test. > Ken > > -- JayDee's Proud-Haus Shepherds/Proud K911 Canine Consulting Committed to the Total Dog you can be Proud of!!! www.jaydeesphs.com Support the next generation's stewards in the sport of dogs... Donate to the German Shepherd Dog Youth Recognition Fund! www.gsyrfund.com ============================================================================ POST is Copyrighted 2014. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. Each Author is responsible for the content of his/her post. This group and its administrators are not responsible for the comments or opinions expressed in any post. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxx VISIT OUR WEBSITE - http://showgsd.org SUBSCRIPTION: http://showgsd.org/mail.html NATIONAL BLOG - http://gsdnational.blogspot.com/ ============================================================================