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1 Bilateral 6th nerve palsies due to idiopathic intracranial hypertensionThis is a 25-year-old woman who presented with diplopia and blurry vision. On exam, she was found to have papilledema and bilateral 6th nerve palsies. Her opening pressure was >40 cm of water with a normal CSF analysis, and neuroimaging was unremarkable aside from subtle findings that have been asso...Sixth Nerve Palsy; Abnormal Range
2 Multiple Cranial Neuropathies Due to Glomus TumorThis is a woman who was diagnosed with a right sided glomus tumor, and subsequently underwent resection. Seen here are multiple cranial neuropathies related to the tumor itself as well as to the surgery. She cannot abduct the right eye due to a right CN VI palsy. She has a right lower motor neuron f...Sixth Nerve Palsy; Facial Nerve; Glossopharyngeal Nerve; Vagus Nerve; Hypoglossal Nerve
3 Multiple Lower Cranial Neuropathies Following Carotid EndarterectomyThis is a patient who underwent a right carotid endarterectomy (CEA). Following the surgery, multiple right sided lower cranial nerves were involved. In his case, there was trapezius and sternocleidomastoid weakness and atrophy on the right, indicative of right CN XI injury. There was an absent gag ...Glossopharyngeal Nerve; Hypoglossal Nerve; Vagus Nerve; Accessory Nerve
4 Ocular bobbing due to hepatic encephalopathyThis is a 55-year-old man presented with hepatic encephalopathy, and found to have ocular bobbing. Head CT did not show any acute changes. Ocular bobbing almost always localizes to the pons, although cerebellar pathology has also (rarely) been identified as a cause. Typical bobbing consists of rhyth...PONS
5 Oculogyric CrisisThis is a patient with neuroleptic-induced oculogyric crisis.Oculogyric
6 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
7 The acute vestibular syndrome with skew deviation, gaze-evoked nystagmus, and bilaterally abnormal head impulse testing due to AICA strokeThis is a 60-year-old man with the acute onset of prolonged vertigo and nystagmus, consistent with the acute vestibular syndrome (AVS). HINTS (Head Impulse, Nystagmus, Test of Skew) exam demonstrated a central pattern: 1) Head impulse test (HIT) was abnormal to the right and to the left. An abnormal...Abnormal VOR-HIT, Abnormal Alignment, Skew, Jerk Nystagmus, Gaze Evoked Nystagmus, Acute Vestibular Syndrome, Seventh Nerve, OMS Pons, OMS Cerebellar
8 Trigeminal Motor Neuropathy with Weakness and Atrophy of the Muscles of MasticationThis is a man who was diagnosed with polio in childhood, which involved the motor (VIII) division of the right trigeminal nerve. The motor portion of the trigeminal nerve innervates the muscles of mastication (temporalis, masseter - both of which demonstrate wasting in this patient - as well as the ...Trigeminal Nerve
9 Trigeminal Neuropathy with Loss of the Corneal ReflexThis is a woman who underwent radiofrequency ablation for left trigeminal neuralgia. Examination demonstrated loss of facial sensation on the left in addition to an absent corneal reflex on the left, consistent with involvement of the V1 (ophthalmic) branch of the trigeminal nerve. When the cornea i...Trigeminal Nerve
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