Deafness (Congenital)
Deafness can occur because of pathology of the mechanics of the external or middle ear (conductive deafness) or of the sensory receptors and cochlear nerve (sensorineural deafness).
Age of Onset: Clinical signs are present at birth
Sex Predisposition: Any sex of animal can be affected
Clinical Course:
Clinical signs do not worsen over time
Clinical signs do not worsen over time
Clinical Signs:
Behavioral/Mental Awareness
Abnormal vocalization
Barking for a prolonged time
Loud vocalization
Unresponsive to vocal commands or auditory stimulus
Easily startled by physical stimulus
Cranial Nerves
Deafness
Behavioral/Mental Awareness
Abnormal vocalization
Barking for a prolonged time
Loud vocalization
Unresponsive to vocal commands or auditory stimulus
Easily startled by physical stimulus
Cranial Nerves
Deafness
Inner ear (cochlea), cochlear nerve, brainstem
Can be associated with white pigmentation of the skin
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