Case Report: Recurrent vestibular episodes in a dog resembling Meniere's disease.

Ménière's disease, characterized by episodic vertigo, sensorineural hearing loss, and tinnitus, is well-documented in humans but rarely reported in veterinary medicine. This case report describes a 15-year-old male mixed-breed dog with recurrent vestibular episodes lasting 30 min to several hours. Clinical signs included ataxia, head tilt, and nystagmus. MRI and diagnostic workups ruled out common structural causes of vestibular signs and ear diseases. Audiometric testing revealed bilateral sensorineural hearing loss with preserved high-frequency hearing in the right ear, a pattern resembling that seen in human Ménière's disease. While the dog improved with supportive care, multiple relapses occurred until the age of 18. This case suggests a Ménière's-like syndrome in dogs and highlights the need for hearing function assessments in idiopathic vestibular disease.