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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 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?
The following is a sample of gray matter stained with Anti-NeuN and viewed under a low-power microscope lens. The pathology marked by the blue arrow is most consistent with which of the following causes of epilepsy?
A 34-year-old female presents to the clinic with the chief complaint of headaches. She endorses a unilateral, throbbing headache that occurs up to 8 times a month. Episodes can last between 1-3 hours. She admits to nausea and photophobia during her headaches. What is the most likely diagnosis?
Based on the MRI imaging shown below, which of the following structural abnormalities is likely also present?
Eteplirsen is an effective treatment in patients with Duchenne muscular dystrophy (DMD) that have which of the following dystrophin mutations?
Which of the following medications has a relatively low risk of sexual dysfunction?
A 44-year-old woman who was recently started on a new abortive therapy for her migraines presents with a new type of headache described as more severe and with an extremely rapid onset. CT head imaging revealed no acute findings and lumbar puncture testing was unremarkable. Which of the following is the most likely diagnosis?
A two-week-old, full-term female with an uncomplicated delivery is brought to the clinic with abnormal jerky movements. Her father states that episodes occur right after the patient is put down for a nap, last for roughly 3 minutes, and resolve with arousal. During the episodes, the patient has rapid, repetitive myoclonic movements of her upper limbs. The physical exam is unremarkable. The patient was admitted to the Epilepsy Monitoring Unit where a typical event was captured and had no EEG correlate. Which of the following is the most likely diagnosis?
You have recently diagnosed an asymptomatic 45-year-old man with Huntington’s disease based on genetic testing which was requested based on a family history of the disease. The patient was informed of these findings in the clinic with his wife by his side. On the following day, you receive a phone call from the patient’s 23-year-old son asking what the results of the testing were. What is the most appropriate response to this question?
Which of the following genes is associated with Wilson’s disease?
A 16-year-old girl is seen in the clinic for episodes concerning for seizures. Episodes are characterized by staring off, unresponsiveness, and licking her lips for 30 to 60 seconds. Two weeks ago one of these episodes developed into a generalized tonic-clonic seizure. That day she went to the emergency room and had an MRI performed. The associated images are shown below. Based on the clinical history and imaging what is the most likely diagnosis?
A 15-year-old male is brought to his primary care doctor by his parents because of learning difficulties in school. Examination revealed several pigmented skin lesions (see below). Which of the following additional findings may be present on examination?
Which of the following does this EEG tracing reveal?
The lesion shown below (blue arrow) is most consistent with which of the following pathologies?
A 58-year-old male with a prolonged history of myasthenia gravis was recently discharged 4 months ago from the hospital with his second myasthenic crisis requiring transient intubation. Since that hospitalization, he was on prednisone, tapered down to 40 mg a day, cyclosporine and pyridostigmine. He comes to the ED today after having a generalized tonic-clonic seizure. On arrival to the ED, the patient is post-ictal and has vision deficits on exam. MRI of the brain shows T2 hyperintensities on the posterior cerebral hemispheres. Which of the following is the likely etiology of this clinical presentation?
Which answer correctly identifies all of the cranial nerve(s) that transverse through the structure (blue arrow) shown below?
A 24-year-old woman presents to the ER with a one-day history of diplopia. On examination, the patient has right internuclear ophthalmoplegia. On further discussion, she describes an episode of left lower extremity numbness about 2 years ago that resolved after a few weeks on its own. An MRI of her brain and spinal cord was ordered. Findings included a T2 hyperintense contrast-enhancing lesion in the pons, as well as non-contrast enhancing T2 hyperintense lesions in periventricular and juxtacortical regions as well as in the thoracic spinal cord. What is the next step to confirm her diagnosis?
An 8-year-old child with a past medical history of tuberous sclerosis presents urgently to the emergency room with lethargy. Funduscopic examination shows blurring of the optic discs. An MRI is performed and shown below. Which of the following is the most likely cause of the patient’s symptoms?
A patient with a history of low back pain had an MRI of their lumbar spine completed as part of their workup. The T2 FLAIR image of the lumbar spine MRI is shown below. What is the most likely diagnosis?