5 year old female spayed Bouvier des Flandres. Rapid onset of progressive neurologic signs.
Cranial nerves: Left ventral strabismus, vertical nystagmus, possible decreased facial sensation
Gait: Non-ambulatory, able to stand with assistance
Postural reactions: Within normal limits
Reflexes: Within normal limits
M/S: Within normal limits
Neuroanatomic Diagnosis: Prosencephalon
Hydrocephalus with occipital compression and indenting of the cerebellum. Large tumor noted in the choroid plexus region of the lateral ventricles.