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An EMG/NCS is performed for the evaluation of subacute left upper extremity weakness in an adult female. There are fibrillation potentials in the deltoid and biceps on EMG and decreased median and radial sensory amplitudes on NCS. Which portion of the brachial plexus was injured?
A 3-year-old male with a history of attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) was referred to neurology by his PCP for concern of a genetic disorder. On examination, the patient appears to have a long face, large ears, and a prominent jaw. Genetic testing shows that the patient has a pathologic gene mutation with over 200 trinucleotide CGG repeats. Which of the following is a comorbidity appreciated in this patient’s neurologic syndrome?
Which of the following is true regarding IVIG and PLEX therapy?
A 7-year-old boy with a history of right facial port-wine stain and mild developmental delay presents to the emergency room for seizures. An MRI brain is performed and the T1 with contrast sequence is shown below. What is the most likely diagnosis?
A 34-year-old female with a history of chronic daily headaches had an MRI performed as part of her workup. Her imaging is shown below. What is the likely etiology of the lesion shown?
The medulla develops from which of the five primary vesicles of the brain?
A patient presents with double vision that improves when tilting their head to the right. A lesion is most likely to be present in which of the following cranial nerves?
An 80-year-old woman with a history of well-controlled Parkinson’s disease presents with worsening movements at night. Her husband states that she often punches and yells during her sleep. Some of these movements have been so dramatic that she punched a hole in the wall beside her bed. Melatonin was tried but did not lead to a significant improvement in symptoms. Which of the following is the most appropriate next step in treatment?
Which of the following is most likely to cause the pathology seen in the image below (white arrow)?
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?
A 75-year-old female with a past medical history of hypertension on lisinopril presents to the emergency department with weakness on the left side of the body and a drooping right eye. On exam, her right eye is inferiorly and laterally deviated. This pupil is also non-reactive. Her strength is 3/5 on the left side. Where is this patient’s lesion?
A 26-year-old woman presents to the emergency department with third-degree burns covering the entire palmar aspect of her right hand. She claims that she was cooking dinner and touched the stove, but states that she “didn’t notice it was hot”. On neurologic exam, she is unable to distinguish between hot and cold sensations on her hands, arms, shoulders, chest, and back. She also fails to respond to pinprick sensation in the same distribution. She denies any major recent traumatic injuries. Which of the following is the most likely cause of her symptoms?
Carbidopa is given concurrently with levodopa to reduce the risk of which of the following side effects?
Which of the following is the mechanism of action of tolcapone?
What is the anatomical structure labeled “C” below?