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What is the anatomical structure marked by the blue arrow?
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 63-year-old woman with a history of right-sided breast cancer status post-mastectomy, chemotherapy, and radiation presents to your clinic with a 2 months history of right arm pain and paresthesias. Which of the following findings on EMG/NCS would most likely suggest a radiation-induced plexopathy over a recurrent neoplastic plexopathy?
Which of the following is the mechanism of action of prazosin?
Which of the following is the reversal agent for dabigatran?
What is the mechanism of action of clopidogrel?
You are asked to see a 2-month-old infant girl with hypotonia, macroglossia, failure to thrive, and cardiomyopathy. Muscle biopsy is done due to the hypotonia, and shows PAS+ vacuolar myopathy. What is the best treatment approach?
A 4-day-old full-term baby is brought to the hospital for two episodes of generalized stiffening and apnea for less than 1 minute followed by a return to baseline. The physical exam is unremarkable and CTH is negative. The mother reports having similar episodes shortly after birth. What is the most likely cause of the episodes?
Brain metastases are most likely to have arisen from which primary source?
A 25-year-old female with no significant past medical history presents with a two-day history of progressive bilateral lower extremity weakness and numbness. On physical exam, she has 3/5 strength in hip flexion and knee extension bilaterally, along with a loss of sensation. She is up to date on all vaccinations. She is afebrile. Sagittal (left) and axial (right) T2 thoracic MRI images are shown below. Which of the following is the most likely diagnosis?
A 42-year-old man with a longstanding history of chronic alcohol abuse was found down unresponsive in a public park. He was intubated in the field and brought emergently to the emergency room where his blood alcohol level was 0.32%. A chest X-ray revealed aspiration pneumonia. He was admitted to the ICU, sedated, started on broad-spectrum antibiotics, and aggressively fluid resuscitated. On the second day of the hospitalization, the sedative was weaned but the patient remained comatose. An MRI was performed to identify a possible cause of his symptoms. What is the most likely diagnosis?
Which of the following neurological diseases has a higher incidence in patients with systemic lupus erythematosus (SLE)?
What sensitivity should the EEG be at to qualify for brain death criteria?
Identify the structure labeled 4 in the angiograms provided below.
An 11-year-old female presents with worsening stiffness. She had no complications while in utero or at birth, yet ever since she started kindergarten she noted to have stiffness in her feet and ankles, which worsens by the end of the day. She eventually started to notice modest stiffness in the legs and mild stiffness in the neck. She underwent physical therapy for this and remained stable. Over the last 2 years, however, the symptoms have been worsening. Which of the following next steps is most indicated?