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A 26-year-old female presents with unilateral vision loss. She says that she noticed symptoms upon awakening yesterday morning and it has gotten progressively worse since then. On neurological examination, she has 20/70 visual acuity of the left eye and 20/20 of the right. There is a left afferent pupillary defect (APD). Extraocular movements are intact but cause pain. What is the most likely etiology of her symptoms?
A patient presents with sudden-onset gait instability and dysphagia. On exam, he has dysmetria of the right hand, anisocoria, loss of pain and temperature of the right face, and loss of pain and temperature of the left arm and leg. An MRI of the brain is performed and shows a stroke. What other symptom is often also a part of the syndrome this patient is experiencing?
Identify the lesion shown below.
Which is the following potentials on EMG has an irregular firing pattern?
The trochlear nucleus sends nerve fibers to which of the following muscles?
A 26-year-old female presents to the hospital following a sudden onset headache and decreased responsiveness. A CT Head is obtained (left) followed by a cerebral angiogram (right). Which of the following is the most likely cause of the patient’s symptoms?
Identify the pathological abnormality shown in the image below.
An 18-year-old male presents to the ED after having his first generalized tonic-clonic seizure. MRI was unremarkable but a routine EEG showed 4-6 Hz polyspike and wave discharges in sleep. Which of the following antiepileptic drugs are most appropriate to start based on the available information?
The ophthalmic branch of the trigeminal nerve exits the skull from which cranial foramina?
Which of the following medications do not worsen myasthenia gravis symptoms?
Which of the following is the first branch of the internal carotid artery once it enters the skull?
A 65-year-old female presents with an abrupt onset of akinetic mutism, lack of motivation, apathy, bilateral leg weakness, and incontinence. A lesion to which of the following vascular territories could explain her symptoms?
Which of the following is the mechanism of action of ocrelizumab?
Which of the following findings is depicted in the catheter angiogram shown?
A 27-year-old presents to the clinic with finger extension, wrist extension, shoulder abduction, and shoulder adduction weakness. There is also numbness along the lateral and posterior arm. Which of the following is the most likely cause of the patient’s symptoms?