Tremor is an involuntary rhythmic oscillation of a body part. Oscillations are of large (coarse) or small (fine) amplitude. They may occur when the animal is recumbent, weight-bearing at rest or during voluntary movement. Tremors often worsen with stressful or exciting stimuli such as play and disappear with sleep. The description of a tremor aids diagnosis.
A sudden onset of generalized tremor which was present at rest and which worsened when the dog was excited or stressed. The dog was lethargic.
Clinical examination revealed a fine generalized tremor of the head, trunk and limbs but sparing the eyeballs. There was no intention tremor. The dog was ambulatory and had normal proprioception and hopping responses. Cranial nerve function was normal.
A generalized tremor syndrome was diagnosed. No evidence of cerebellar disease was present.