A man in his early 30s experienced infratentorial bleeding of unknown etiology. Two weeks after this occurrence, he manifested rhythmic horizontal jaw and eye movements (Video). About 5 weeks after the patient’s hemorrhage he was observed to have pendular nystagmus and soft-palate oscillations with a frequency of 3 Hz. Fiberoptic laryngoscopy examination revealed rhythmic movements of the pharynx, root of the tongue, and plicae aryepiclotticae (Video). A diagnosis of oculopalatal tremor was made on the basis of the clinical observations. Findings from the magnetic resonance imaging examination done 8 weeks after the patient’s initial brainstem injury revealed bilateral T2-weighted hyperintense signal changes at the level of the lower olivary nuclei and of the inferior cerebellar peduncles (Figure), corresponding to a disruption of the inhibitory dentato-rubro-olivary pathway (the so-called Guillain-Mollaret triangle).1
Kalla R, Meichtry J, Schumacher R, et al. Dancing Jaw and Dancing Eyes. JAMA Neurol. 2016;73(1):122. doi:10.1001/jamaneurol.2015.2299
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