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1 Saccadic Hypermetria and Ipsipulsion (Behind Closed Eyelids and with Vertical Saccades)This is a 40-year-old woman who experienced oscillopsia and vertical diplopia, due to spontaneous torsional nystagmus and a skew deviation (right hypotropia), respectively. The symptom onset was 7 months prior to these videos. MRI demonstrated ill-defined T2 and FLAIR hyperintensity signal changes i...Jerk Nystagmus; Torsional Nystagmus; Saccades; Lateropulsion; Medulla
2 Saccadic dysmetria and ocular lateropulsion in lateral medullary strokeThis is a 30-yo-man who suffered a right lateral medullary stroke. Examination showed saccadic hypermetria to the right (ipsilesional), hypometria to the left (contralesional)and rightward ocular lateropulsion (ipsilesional), common ocular motor features of the lateral medullary syndrome. Saccadic h...Lateral medullary syndrome, Wallenberg Syndrome, Saccadic dysmetria, Ocular lateropulsion, Saccades
3 The acute vestibular syndrome with dysarthria, dysphagia, dysphonia, hemi-ataxia, and saccadic dysmetria due to the lateral medullary (Wallenberg) syndromeThis is a 50-year-old woman with the acute onset of vertigo, dysarthria, dysphagia and dysphonia/hoarseness (nucleus ambiguus), ptosis and imbalance. Her examination localized to a left lateral medullary (Wallenberg) syndrome - there was decreased sensation on the left side of the face (spinal trige...Acute Vestibular Syndrome, Ninth Nerve, OMS Medulla, Abnormal Saccades, Tenth Nerve, Lateropulsion, Horner Syndrome
4 Vestibular Neuritis with a Peripheral Skew DeviationThis is a 55-year-old hypertensive man who developed acute onset continuous vertigo and presented to the Emergency Department (ED) after several hours of symptoms. He was noted to have spontaneous nystagmus and had a normal brain MRI within the first 24 hours. The first portion of the video was rec...Abnormal VOR; Abnormal Alignment; Eighth Nerve; Skew Deviation; Lateropulsion; Jerk Nystagmus; Vestibular Nystagmus; Acute Vestibular Syndrome
5 Wallenberg syndrome in MS30-yo-woman with MS presenting with acute vertigo and vertical diplopia. Examination demonstrated several aspects of the Wallenberg syndrome (her acute demyelinating lesion was in the left lateral medulla): ipsilesional (left) ocular lateropulsion (hypermetric saccades to the left, hypo to the right...Vestibulo-ocular reflex; Head impulse testing; Abnormal alignment; Lateropulsion; Wallenberg syndrome; Medulla; Vestibular nystagmus; Skew Deviation
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