Quiz 07/26/2022 (1)

Which of the following muscles is solely innervated by the C5 nerve root?

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?

A 36-year-old female with a history of renal cell carcinoma with headaches and slight right arm/leg ataxia had an MRI of the brain that showed a contrast-enhancing lesion in the right cerebellum. Surgical resection was completed and histology of the lesion is shown below. This patient most likely has which of the following diagnoses?

A 9-year-old boy presents to the clinic with complaints of gait and speech trouble. His mother reports he started walking “like he was drunk” a few months ago. He had genetic testing that confirmed a trinucleotide GAA repeat expansion in one of his genes. Which of the following findings on physical exam is least likely to be present?

Identify the finding shown in the EEG below:

A patient with right leg weakness presents to the neuromuscular lab for electromyography. The image below depicts a spontaneous finding while evaluating the right tibialis anterior muscle. This finding is most consistent with which of the following?

A 24-year-old healthy male with recent right-sided otitis media complicated by mastoiditis presents to the ER with a first-time seizure. On examination the patient is somnolent and febrile, MRI brain shows a right temporal lobe intraparenchymal mass with a solid rim of contrast enhancement and surrounding vasogenic edema, what is the most likely etiology?

A 45-year-old man with a past medical history of type 2 diabetes and COPD presents with a 1-week history of fever, headache, and dizziness. Additionally, for the past two days, he has had intractable vomiting. MRI of the brain with and without contrast is shown below. What is the most appropriate treatment for this patient?

The brain MRI (susceptibility-weighted imaging) shown below is most likely associated with which of the following conditions?

A 35-year-old woman presents to the clinic with headaches. Her past medical history is significant for migraines and a sprained ankle four months ago that she has been managing with daily NSAIDs. Her headaches started a month ago and have been occurring every day for the past three weeks. She describes the headaches as a band-like pressure around her head. Nothing has helped but the symptoms are worse in the mornings. A recent brain MRI was completed during an emergency room visit which was unremarkable. Which of the following is the most appropriate next step in therapy?