A. Classically degenerative myelopathy is a diagnosis of exclusion, ruling out other causes of the symptoms. Similar neurological signs can be caused by other diseases such as intervertebral disc disease, other spinal deterioration, neoplasia and others.
Magnetic resonance imaging and cerebrospinal fluid analysis is often necessary to rule out these problems.
More recently a genetic test has been established and can be performed.
I would recommend to ask your veterinarian about this test.
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