Vestibular syndrome associated with temporohyoid joint fusion and temporal bone fracture in three horses.
Acute onset of vestibulocochlear and facial nerve dysfunction due to a stress fracture of the petrous part of the temporal bone was diagnosed in 3 horses. The fracture was secondary to chronic inflammatory changes in the petrous part of the temporal bone and the proximal stylohyoid bone, with fusion of the temporohyoid joint. Bacterial meningoencephalitis was a complicating factor. Treatment resulted in reduction of severity of clinical signs in 2 of the 3 cases, but residual compensated vestibular deficits persisted.
D000818:Animals; D003389:Cranial Nerve Diseases / Q000209:etiology / Q000662:veterinary*; D005155:Facial Nerve Diseases / Q000209:etiology / Q000662:veterinary; D006734:Horse Diseases / Q000209:etiology*; D006736:Horses; D007759:Labyrinth Diseases / Q000209:etiology / Q000662:veterinary; D008297:Male; D012887:Skull Fractures / Q000150:complications / Q000209:etiology / Q000662:veterinary*; D013577:Syndrome / Q000662:veterinary; D013701:Temporal Bone / Q000293:injuries*; D014722:Vestibule, Labyrinth; D000160:Vestibulocochlear Nerve Diseases / Q000209:etiology / Q000662:veterinary