Quiz 07/11/2022 (3)

The PET scan shown is most consistent with which of the following diseases?

Which of the following is most likely to cause the pathology seen in the image below (white arrow)?

A 5-month-old female is brought to the emergency room by her parents because of an episode concerning for possible seizure. On arrival, the patient appears back to her clinical baseline neurologically. Several hypomelanotic lesions are appreciated while performing a skin check. The mother notes that her older brother has similar skin findings. An EEG is performed and shown below. A typical event was captured that correlated with an electrodecrement of cortical activity on EEG.

Based on the child’s diagnosis, what is the most appropriate therapy?

You are caring for a 1-year-old girl with severe refractory epilepsy with frequent focal seizures. She had normal developmental until 3 months of age when she had seizure onset as well as a loss of milestones. Continuous EEG revealed multiple seizure types, with multiple foci of onset in each hemisphere. The seizures appear to migrate between hemispheres on EEG, and clinically. Which gene is most often associated with this disorder?

Which of the following is the mechanism of action of pimavanserin?

Which of the following is the most likely diagnosis based on the EMG provided below?

The lesion shown below is most consistent with which of the following pathologies?

A 75-year-old female with a past medical history of atrial fibrillation and hypertension presents to the ER with garbled speech. She seems unaware that her speech is nonsensical. On physical exam, she is unable to follow verbal commands but can understand visual cues. An ischemic injury is suspected. If this is true, a brain MRI would show which of the following areas of the brain is/are affected?

A three-month-old female born full-term and without any significant past medical history is brought to the clinic with episodes of head-nodding for the past one week. Episodes last for only a few seconds and only occur while awake. On physical exam, there is an abnormal head tilt to the left and intermittent head nodding. Intermittent, horizontal, and bilateral nystagmus was also appreciated. Routine EEG and MRI of the brain with and without contrast were normal. Which of the following is the most likely diagnosis?

The pathology shown in the image below is likely secondary to which of the following?

Which of the following syndromes are most likely associated with the lesion shown in the image below?

A 3-year-old girl is admitted to the hospital with a 2-day history of constipation, lethargy, and a weak cry. Repetitive stimulation performed at 20 Hz revealed incremental response. What is the likely cause of this patient’s illness?

A 19-year-old male with a history of a motorcycle accident 6 weeks ago with several bone fractures of the arms and legs was referred to the EMG lab with right arm numbness since the accident. Where is the most likely site of this patient’s neuronal injury?

An 18-year-old male with a history of IV drug use was found unresponsive on a park bench by police. He was intubated by EMS and sent directly to the emergency room. The patient is comatose on examination. CT scan of the head is shown below. What is the likely diagnosis?

What is the likely etiology of the findings appreciated on the imaging below?