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A patient with a recent history of ischemic stroke with almost no residual focal deficits except for a mild right-sided facial droop presents to the emergency room with altered mental status. Vital signs are only impressive for a low-grade fever. CT head and CTA show no acute changes when compared to imaging completed for his initial stroke. Blood work shows thrombocytopenia, anemia, and renal failure. A severe drug reaction is suspected. Which of the following medications is most likely the cause of this clinical presentation?
What is the pathophysiology of the lesion provided below?
Which of the following is not a risk factor for carotid dissection?
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?
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?
Identify the lesion below.
Which of the following can be appreciated on the T1 MRI sequence shown below?
The brain MRI (susceptibility-weighted imaging) shown below is most likely associated with which of the following conditions?
A 26-year-old female presents to the hospital following a sudden onset headache and decreased responsiveness. A CT Head is obtained (left) followed by a cerebral angiogram (right). Which of the following is the most likely cause of the patient’s symptoms?
A 30-year-old male presents to the emergency room with weakness in his bilateral lower extremities. On arrival, he was hypertensive and bradycardic. 2/5 strength is appreciated in his bilateral lower extremities. A loss of pinprick sensation is also appreciated from his lower extremities, but proprioception and vibratory sensation are intact. These findings are most likely secondary to a lesion of which of the following blood vessels?
Which of the following is the most likely cause of the findings appreciated on the axial CT head shown below?
A 44-year-old woman who was recently started on a new abortive therapy for her migraines presents with a new type of headache described as more severe and with an extremely rapid onset. CT head imaging revealed no acute findings and lumbar puncture testing was unremarkable. Which of the following is the most likely diagnosis?
A 65-year-old right-handed man presents with acute onset speech difficulties, a mild right-sided facial droop, and right-sided arm weakness. While talking to his wife over breakfast this morning he suddenly stopped speaking and could only make unintelligible sounds. On examination, he is unable to speak any words but has intact comprehension. He is able to write clearly what he wants in full sentences with intact grammar and reading is also preserved. Which of the following best describes his language deficit?
A 40-year-old male with a history of headaches, seizures, and recurrent strokes has a brain biopsy performed to aid in diagnosis. Electron microscopy of his brain tissue shows granular osmiophilic material in the basal lamina of small cutaneous arterioles. What is the cause of this patient’s disease?
A 72-year-old male with diabetes, hyperlipidemia, and tobacco abuse is admitted to the stroke service after he is found to have a left superior middle cerebral artery territory stroke. His EKG on admission showed a normal sinus rhythm. A transthoracic echocardiogram (TTE) is performed. Which of the following findings on TTE would lead to the recommendation of an anticoagulant medication over an antiplatelet medication for secondary stroke prevention?