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TitleDescriptionSubject
1 Eyelid retraction, pseudoabducens and upgaze palsy due to a mesodiencephalic hemorrhageThis is a 70-yo-man who suffered a right midline thalamic/rostral midbrain hemorrhagic stroke causing a pretectal (Parinaud's) syndrome. There was prominent eyelid retraction (Collier's sign), a left pseudo-abducens, and upgaze palsy with convergence retraction nystagmus. There was no light-near dis...OMS Mesenecephalon, Convergence Reaction Nystagmus, Upgaze Palsy, Abnormal Range, Sixth Nerve Palsy, Vertical Gaze Palsy, Eyelid Retraction, OMS Dorsal Midbrain
2 Ocular motor signs in early progressive supranuclear palsyThis is a 64-year old man who experienced imbalance and falls (usually backwards) for the last 6 months. He experienced difficulty navigating stairs and had become a messy eater (thought to be in large part due to his vertical gaze palsy), and had developed hypophonia. Exam demonstrated square wave ...Abnormal Saccades, Abnormal Convergence, Abnormal Pursuit, Abnormal Range, Abnormal VORS, Vertical Gaze Palsy, Downgaze Palsy, OMS Mesencephalon
3 Test Your Knowledge - Vertical saccadic palsy due to bilateral riMLF infarctionsThis is a 30-year-old who was found minimally responsive on the lounge floor of an ice skating rink. He was brought to the ED, where he had a GCS score of 8 (where 15 is normal) for poor responsiveness. His ocular motor exam is shown in the video.; ; Regarding Finding #1, which of the following is f...Abnormal Saccades, Normal Optokinetic, Abnormal Range, Vertical Gaze Palsy, Upgaze Palsy, Downgaze Palsy, Mesencephalon, Ocular Motor
4 Test your knowledge - Parinaud's syndrome in neurosarcoidosisWatch the first segment of the video up to "Stop! What would you expect with vertical gaze?" and select the best response below. The patient also has mild right-beating nystagmus which can be ignored for the purposes of this question. ; A.; The patient has pupillary findings consistent with bilatera...Normal Convergence, Vertical Gaze Palsy, Upgaze Palsy, Dorsal Midbrain, Mesencephalon, Convergence Retraction
5 Vertical gaze palsy and saccadic intrusions due to anti-Ri from head and neck carcinomaA 55-yo- woman was admitted for imbalance and double vision. Three weeks prior to presentation she first noticed swelling on the right side of her face and neck. CT of the head and neck showed right-sided cervical adenopathy and enlarged left retropharyngeal node. Ultrasound- guided biopsy of the n...OMS Mesencephalon, Square Wave Jerks, Upgaze Palsy, Downgaze Palsy, Abnormal Range, Skew, Vertical Gaze Palsy
6 riMLF Syndrome from Artery of Percheron StrokeThis is a 65-yo-man who suffered the abrupt onset of loss of consciousness followed by difficulty looking down. MRI showed bilateral rostral midbrain strokes in the distribution of the artery of Percheron. He could not initiate downward saccades and had fair upward saccades. However, downward vestib...Saccades abnormal; Vestibulo-ocular reflex and head impulse testing normal; Pursuit normal; Vertical gaze palsy; Downgaze palsy; Mesencephalon
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