Abstract
Venous angioma of the cerebellum is a vascular malformation of the central nervous system, which is difficult to diagnose from the clinical symptoms alone. This paper describes a 37-year-old female who complained of rotatory vertigo. She had various type of nystagmus : Bruns-like nystagmus, rebound nystagmus and direction-changing vertical position nystagmus. ETT was saccadic pursuit. Acceleration of OKP was limited, and the velocity of its slow phase was low. Caloric tests showed unilateral canal paresis and limitation of visual suppression. Cerebral angiography and MRI revealed a cerebellar venous angioma. We followed her for over two years. As her clinical condition improved, OKP also improved, but saccade pursuit of ETT and limitation of VS remained. We speculate that the eye movement system of the cerebellum was directly and irreversibly damaged, while the brain stem was indirectly disturbed.
