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A 43-year-old man with obesity and hypertension presents with complaints of excessive daytime sleepiness, gasping awakenings, and witnessed periods of not breathing during sleep. A polysomnogram is performed and confirms the presence of sleep-disordered breathing. What feature would point to a central rather than obstructive cause?
Which of the following is classically seen on electromyography in a patient with a chronic neuronal injury?
An MRA is ordered for a patient presenting with an acute stroke. Based on the lesion appreciated in the image below (white arrow), what symptom is likely to be seen on examination?
Identify the lesion shown in the image below.
An 82-year-old female patient with a history of atrial fibrillation is brought to the emergency department after being found down at home. She is unable to move her extremities, although she is able to blink and move her eyes vertically. Occlusion of which artery/arteries is the most likely cause of her symptoms?
A 78-year-old patient with a history of multiple system atrophy (MSA) presents to your clinic for falls. The patient states that while standing he initially experiences feelings of lightheadedness and tunnel vision before a loss of consciousness. While on the ground he will be “twitching” for 30 seconds before he regains consciousness. Which of the following tests is the most likely to be diagnostic in this case?
A 47-year-old former football player with a history of diabetes and hypertension presents to the EMG lab with left upper extremity weakness and pain. Motor and sensory nerve conduction studies were normal. An EMG was performed and shown below. What is the most likely diagnosis?
A 63-year-old woman with right leg weakness and pain has an MRI performed to evaluate for a possible cause. Her imaging is provided below. Based on the location of the lesion, which of the following muscles is most likely weak on examination?
A 32-year-old man with a 4-week history of painful swelling on his right forehead presents to the emergency room. A CT scan of the head was performed and is shown below. What is the most likely diagnosis?
The thalamus and hypothalamus are derived from what embryonic structures?
You are reading a visual evoked potential (VEP) that has a prolonged P100 latency in the right eye and a normal latency in the left eye. Of the following, which pathology is most consistent with this study?
A 50-year-old male with a 1-year history of behavioral changes and abnormal movements has a CT head performed after having a fall at his nursing home. Based on the imaging and brief clinical history what is the likely genetic abnormality associated with his neurological disease?
A 19-year-old woman presents for evaluation of paroxysmal episodes of vertigo, spasticity, diplopia, and ataxia. She reports that her father and one of her two sisters have similar ailments. At the time of the appointment, there was no diplopia or ataxia appreciated. Myokymia was appreciated on electromyography. Which of the following is the most likely diagnosis?
Which of the following is most strongly associated with an increased risk of seizure recurrence after a first unprovoked seizure?
Identify the structure labeled 4 in the angiograms provided below.