Cerebellar Hypoplasia
A congenital malformation that is defined by inadequate development of the cerebellum. Causes can range from genetic abnormalities to in-utero infection. Concurrent hydrocephalus and hydranencephaly may also occur. It has been reported in several dogs with no breed predilection.
Age of Onset: 1 month of age
Sex Predisposition: Any sex of animal can be affected
Clinical Course:
Clinical signs may or may not worsen over time
Clinical signs may or may not worsen over time
Clinical Signs:
Posture and Appearance
Periodic opisthotonus
Wide-base stance
Movement
Hypermetria/Dysmetria
Ataxia
Intention tremor
Pelvic limb stiffness
Inability to stand or maintain balance
Unable to remain in a sternal position
Mild spasticity
Proprioception
Proprioceptive deficits
Cranial Nerves
Absent menace response
Nystagmus
Spinal Reflexes
Exaggerated spinal reflexes
Posture and Appearance
Periodic opisthotonus
Wide-base stance
Movement
Hypermetria/Dysmetria
Ataxia
Intention tremor
Pelvic limb stiffness
Inability to stand or maintain balance
Unable to remain in a sternal position
Mild spasticity
Proprioception
Proprioceptive deficits
Cranial Nerves
Absent menace response
Nystagmus
Spinal Reflexes
Exaggerated spinal reflexes
Cerebellum
Unknown
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