Unilateral sensorineural hearing loss associated with dolicoectasia of vertebral artery

Dear Editor, Unilateral sensorineural hearing loss (SNHL) has many etiologies including vascular sources. Advances in imaging techniques allowed us to visualize the vascular causes of these pathologies. The contributing factors that influence neurovascular compression have been discussed and categorized by several authors1,2. Different patterns of vascular abnormalities causing neurovascular compression are previously demonstrated. These abnormal vascular patterns are usually dolichoechtasia, aneurism, arteriovenous malformations and thrombosis. However, only unilateral sensorineural hearing loss associated vertebral artery dolichoechtasia without signs of brainstem or cerebellar dysfunction is rare1,3.