Teaching Video NeuroImages: Macrosaccadic oscillations induced by horizontal head impulses.


A 33-year-old woman experienced chronic dizziness for 2 years. Examination disclosed gaze-evoked nystagmus and hypermetric saccades. Macrosaccadic oscillations (MSOs) were induced by a gaze shift and horizontal head impulses (video at Neurology.org). Brain MRI demonstrated a large (3.8 3 3.9 3 5.3 cm) epidermoid cyst at the fourth ventricle that compresses… (More)
DOI: 10.1212/WNL.0000000000004291


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