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An 80-year-old woman with a history of Parkinson’s disease that is well controlled with carbidopa-levodopa presents with her husband for evaluation of delusions. Her husband states that the patient believes that she is being consistently monitored by the FBI and will avoid eating certain foods for fear of being poisoned. She is also constantly worried that her husband will leave her for a younger woman. Which of the following medications would be the most appropriate FDA-approved treatment for these symptoms?
A 90-year-old woman presents to the emergency room with an acute change in mental status. On examination, she is alert but is not answering questions or following commands. Speech is fluent, but not interpretable. Comprehension is severely impaired. Interestingly she was able to repeat full sentences without much difficulty. Which of the following is the most likely territory of ischemic damage?
Patients with narcolepsy and cataplexy have a deficiency in which of the following neuropeptides?
A 38-year-old man presents with frequent headaches over the past year and recent development of polydipsia and polyuria. He has also been complaining of a dry cough, shortness of breath, and erythematous nodules along his shins bilaterally. MRI of the brain shows a contrast-enhancing lesion of the hypothalamus. Which of the following is the most likely diagnosis?
A 5-year-old female was brought to the neurology clinic for a second opinion for paroxysmal spells of dizziness. The family states that several times a month the patient will develop severe dizziness, nausea, and vomiting. Symptoms usually only last less than 5 minutes. An MRI and 24-hour ambulatory EEG have been performed in the last 3 months. Both were unremarkable. What is the most likely diagnosis?
What clinical diagnosis does this EEG tracing suggest?
A 34-year-old schoolteacher presents to the emergency department with confusion and weakness. Her family reports they have been staying at their cabin for labor day weekend and the patient spent the whole time inside complaining of generalized fatigue, myalgia, headache, and light sensitivity. They felt she had “a cold” so they let her rest. This morning, Monday, she was found in her bed unable to move and confused.
On exam, she is disoriented. She has nuchal rigidity. On musculoskeletal exam, she has diffuse but left > right weakness in the limbs. Her reflexes are 0/4 in the bilateral ankle, knee, and brachioradialis, and 1+ in the bilateral biceps. The sensory exam is normal.
The serum glucose is 100. Lumbar puncture is performed and shows glucose 60, protein 55, RBC 1, and WBC 25, lymphocyte-predominant.
Which of the following is the most appropriate preventive measure for this condition?
A previously healthy 59-year-old male presents with an acute onset of slurred speech and left-sided weakness. The symptoms started 7 hours ago. On arrival, his NIHSS is 8 and his EKG shows a normal sinus rhythm. Vessel imaging is done and shows a right middle cerebral artery occlusion, so the patient undergoes a successful mechanical thrombectomy and has minimal residual neurological deficits. A post-thrombectomy CT head is performed and negative for blood. Which of the following options is the most appropriate next step in medical management?
A 45-year-old man with a past medical history of cardiac arrhythmia requiring pacemaker placement is referred to the clinic with a twenty-five-year history of slowly-progressive bilateral ptosis and diplopia. On examination, he has bilateral ptosis, decreased range of motion of the extraocular muscles, and mild proximal weakness in his upper and lower extremities. Which of the following is the most likely diagnosis?
A 57-year-old male with recently diagnosed small cell lung cancer (SCLC) is presenting to the electromyography lab with a one-month history of muscle cramps and muscle pain. Percussive myotonia is appreciated on examination. Electromyography showed myokymic discharges. Autoantibodies against which of the following channels are likely present in this case?
A 24-year-old weight-lifter presents after sudden-onset neck pain. On exam, there is right eye ptosis and asymmetric right pupil constriction. Additionally, the patient appreciated decreased sweat production on the right side of his face. 1% hydroxyamphetamine eye drops are administered to the right eye and it dilates. Where is the most likely site of the patient’s lesion?
A 40-year-old man is seen in the clinic with the chief complaint of headaches. He endorses a unilateral stabbing-like pain around the temple. This pain lasts 10-30 seconds at a time and occurs dozens of times a day. There were no clear triggers. There is associated ipsilateral conjunctival lacrimation and rhinorrhea. What is the most likely diagnosis?
A 6-month-old full-term female is referred to the clinic with persistent right shoulder and elbow weakness since birth. Which of the following is the most likely pathologic lesion?
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?
Which of the following muscles is solely innervated by the C5 nerve root?
A 19-year-old female who was admitted to the epilepsy monitoring unit for medically refractory epilepsy had one of her typical seizures captured during recording (see below). Which of the following symptoms did the patient most likely experience at the time of this recording?
A 65-year-old man comes to the clinic with a one-year history of difficulty walking. More recently, he has also noticed a tendency to drop things. On examination, he was found to have weakness in his bilateral lower limbs, predominantly in his quadriceps muscles, along with finger flexion weakness that is worse on the left side. His sensory examination was normal. Which of the following is the most likely diagnosis?
A 30-year-old woman presents to the clinic with severe headaches requesting treatment because she “can’t live with this pain”. Episodes are left-sided, occur multiple times a day, and last about 20 minutes each. During episodes, she will also have eye tearing and rhinorrhea. What is the appropriate therapy?
A 67-year-old male with a past medical history of hypertension and diabetes presents with a 5-day history of facial paralysis and an ear rash. The patient states he returned from a 4-day backpacking trip in the Adirondacks 2 weeks ago in upstate New York where he engaged in hiking and freshwater swimming. His temperature is 36.9 °C (98.5°F), pulse is 72/min, and blood pressure is 131/78. Examination reveals an erythematous vesicular rash in the left auditory canal and pinna and drooping of the left face, forehead, and eyelid. A Weber test lateralizes to the right ear and a Rinne test shows air conduction greater than bone conduction in both ears. What is the most likely diagnosis?
A 20-year-old female presents with complaints of 2 years of excessive daytime sleepiness and brain fog during the day. She reports sleeping is unrefreshing. In the morning she has difficulty waking up and feels an uncontrollable desire to go back to sleep. She denies difficulty staying asleep during the night and denies episodes of suddenly collapsing in stressful situations. She had a polysomnogram where she slept for 12 hours, had 4 apneic episodes per hour, had REM sleep onset latency of 7 minutes, and did not have sleep-onset REM periods (SOREMPs). Which of the following is her diagnosis?
A 33-year-old woman has recently given birth to a healthy 3-month-old boy. She has been complaining of poor sleep for the past year, mainly from an uncontrollable urge to move her legs that is only relieved by moving them. This is present during the day to a small degree but is much worse at night and during periods of rest. What would be the best test to order for her?
Which is the following potentials on EMG has an irregular firing pattern?
Narcolepsy is associated with which of the following HLA alleles?
A 38-year-old man with long-standing migraines was recently hospitalized for an unprovoked seizure. Upon further questioning, the patient admits to a strong family history of headaches and early strokes. A brain MRI is completed and a T2 sequence image is shown below. This patient likely has a mutation in which of the following genes?
A 14-year-old female presents to the clinic with frequent falls, clumsiness, and stumbling on her feet. She also reports progressive difficulty with simple tasks such as buttoning her shirts and a loss of feeling in her feet. On physical exam, she has high-arched feet and loss of position and vibration sensation of her great toe. Thoracolumbar MRI shows atrophy of the cervical cord. This condition is associated with which genetic mutation?