Quiz 07/19/2022 (6)

This brain biopsy is representative of which of the following tumors?

A previously healthy 15-year-old male presents to the emergency room after experiencing a concussion while playing soccer. He is now back to baseline but to be thorough the ED physician orders an MRI which is shown below. What is the lesion shown in this MRI?

A 21-year-old woman with a past medical history of depression presents with recurrent episodes of out-of-body sensations lasting 30 seconds. This may be followed by 1-2 minutes of staring and unresponsiveness that she does not remember. She often remains confused for 10 minutes after an event. They occur 1-3 times every 2 weeks. An MRI brain is done and shows no pathology. Which test is the most diagnostically valuable next step in her workup?

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?

Which of the following is most likely to be damaged by carbon monoxide toxicity?

An 8-year-old girl is noted to have staring spells during class by her teacher. In the office, you are able to provoke an event by having her blow repeatedly into a pinwheel. What is the most likely underlying pathology of her disease?

A 35-year-old male with a history of intravenous drug use was found unresponsive with a used syringe at his side. After 30 minutes of CPR, there was a return of spontaneous circulation. A CTH was performed (shown below). Which of the following is appreciated on imaging?

Which of the following EEG artifacts is prominently seen on this EEG?

A 13-year-old male with a recent history of acute disseminated encephalomyelitis (ADEM) presents to the clinic for post-hospital follow-up. He has made a near-complete recovery from his illness but his parents want to know what is his risk of recurrence. What is the most accurate statement you can share with the parents?

A 4-year-old male with no significant past medical history presents to the emergency room after experiencing a first-time seizure. An EEG is obtained and captures a seizure arising from the left hemisphere and polymorphic delta slowing on the same side. Over the next several months the child continues to experience focal-onset seizures despite being on 2 maximally-dosed seizure medications. His brain MRI, below, shows asymmetric left-hemispheric atrophy. His clinic presentation and imaging are most consistent with which of the following diseases?

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 correct diagnosis?

This muscle biopsy is most consistent with which myopathic disease?