Vertical Gaze Palsies From Medial Thalamic Infarctions Without Midbrain Involvement

Abstract

Vertical gaze palsies are known to be produced by lesions of the rostral interstitial medial longitudinal fasciculus. This MRI study reveals thalamic infarctions without associated midbrain infarctions in three patients with vertical gaze palsies. This may be explained by interruption of supranuclear inputs.