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A 42-year-old welder complains of a one-year history of progressive resting tremor, shuffling gait, and drooling. He consults a physician because of frequent falls and worsening fatigue. A diagnosis of a particular type of metal toxicity was made and treatment is started. Which of the following would most likely be found if an MRI brain if ordered?
Which of the following genes is responsible for familial ALS?
The epileptologist’s EEG report for a patient in the neuro-ICU identifies a “burst suppression” pattern. Which of the following is not a criterion required to diagnose burst suppression?
A 16-year-old male with no significant past medical history presents to the emergency room with vision complaints and coordination issues. Four days ago, he began experiencing double vision and since then has had progressive difficulty picking up objects and buttoning his shirts. On physical exam, the patient has a decreased range of motion of the extraocular muscles bilaterally, as well as areflexia and ataxia when walking. What is the most likely diagnosis?
Which of the following is the genetic mutation commonly seen in patients with hereditary neuropathy with liability to pressure palsy (HNPP)?
389 Patients who had acute unilateral optic neuritis were enrolled between 1988-1991 in a study and followed for 15 years to assess their risk for developing multiple sclerosis (MS). They found that the probability of developing MS within 15 years was 50%. What type of study was this?
A 59-year-old woman presents to the emergency room with dizziness and left ear fullness. The symptom is described as a spinning sensation that is present at rest and with action. She has had comparable events before, which have self-resolved over time. The patient is ataxic on the exam and has difficulty hearing out of her left ear. An MRI brain with and without contrast was normal. Which of the following is the most appropriate line of therapy that will decrease the risk of future recurrent events?
A lesion to which of the following neuroanatomical structures causes dysphagia, decreased gag reflex, and hoarseness?
A 39-year-old male presents to the clinic for hallucinations. His medical history is only remarkable for a chemical accident at his job resulting in severe corneal scarring bilaterally, for which he now requires a seeing-eye dog.
His hallucinations are usually of tall figures dressed in black with long fingers. He is not frightened by this because he knows they are not real. He denies other neurologic deficits, denies auditory hallucinations and describes his mood as “good”. The rest of his exam is normal.
You are familiar with the underlying syndrome the patient is experiencing. You inform the patient that in the rest of the population the most common cause of this syndrome is actually…
A 4-year-old female was brought to the emergency room for lethargy, ataxia, and nausea. MRI brain with contrast showed well-circumscribed, contrast-enhancing heterogeneous lesions in the 4th ventricle. Surgical resection was performed and histopathologic analysis was completed. Which of the following is the correct diagnosis?