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An 82-year-old female presents with her family for a 3-year slow decline in memory. On examination, she has a MOCA of 23/30. She does not feel that she has any issues, but her family feels that she has trouble remembering important dates in her life and will repeat stories to them. Despite this, she has lived alone since her husband died 2 years ago and is able to cook, clean, and bathe on her own. She also balances her own checkbook and does her own grocery shopping. According to the DSM-V, this patient meets the criteria for which disorder?
A 12-year-old boy with no significant past medical history is admitted to the neurology service after presenting with acute-onset fever, personality changes, and difficulties with speech. His mother states that three days ago he also reported seeing bats and other wild animals running around his room. She decided to bring him to the hospital today after she noticed that he seemed more tired and was moving slower than normal. A lumbar puncture and MRI of the brain are ordered. The CSF shows elevated protein, elevated lymphocyte and red blood cell counts, and normal glucose. MRI of the brain is shown below. What is the most likely diagnosis?
Oculomotor nerve palsy is most likely to be seen secondary to an aneurysm in which of the following arteries?
Which of the following is most commonly associated with NMDA-receptor encephalitis?
How long ago did the ischemic injury seen on this neuronal tissue micropathology slide occur?
Which of the following is correct regarding the H-reflex?
A 50-year-old female presents with altered mental status. Her family states that over the past couple of weeks, the patient has had progressive memory loss, mood changes, and poor judgment. On examination, the patient has involuntary arm movements and an exaggerated startle response. Brain MRI, DWI sequence, is shown below. Which of the following is the most likely diagnosis?
A 13-year-old girl presents with headache, confusion, and polyuria. MRI brain with contrast shows a heterogeneous, contrast-enhancing lesion with mass effect located in the pineal region. A biopsy was performed. Immunohistochemical staining for cKIT of the biopsied tissue is shown below. Which of the following is the most likely diagnosis?
A mutation in which of the following genes would be most likely in a patient with numerous cavernous malformations seen on head imaging?