Fig. 3From: Sudden unilateral hearing loss and vertigo following isolated cerebellar hypoperfusion without infarction due to vertebral artery dissectionPure-tone audiogram 2 months later (a) documented persistent unilateral sensorineural, pure-tone average of 53 dB in the left ear. Additionally, perfusion CT (b) showed that the perfusion deficits remained in the left cerebellum along the PICA and AICA territories (red arrow)Back to article page