Brainstem glioma in childhood (2)

Benign paroxysmal positional vertigo

Benign paroxysmal positional vertigo (BPPV) is the most common vestibular disorder. The cardinal feature of the disorder is disabling vertigo provoked by changes of head position. Several variants have been recognized, reflecting involvement of the posterior, horizontal, or anterior semicircular canal by canalolithiasis or cupulolithiasis.