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A 33-year-old woman with a past medical history of depression is brought to the clinic by her husband because of atypical behavior. For the past three weeks, her thoughts have become progressively more disorganized. She is also having auditory hallucinations. Similar behavior has been seen intermittently over the past five years. Despite having a history of depression, her husband says the depression has been well controlled for the last three months. Which of the following is the most likely diagnosis?
Identify the structures labeled in the image below:
A 30-year-old male presents with progressive dysphagia over the last month. Head imaging is completed and shown below. Which of the following is the most likely diagnosis?
A 72-year-old female presents to the clinic with her husband who states that she is “seeing things that aren’t there”. For the past two weeks, she has been complaining of bats flying around her room at night. Comparable visual disturbances have occurred over the past year, but have gotten progressively worse recently. She has also been acting out a lot at night; her husband states that she has been violently kicking and flailing her arms while asleep. Finally, she has been experiencing cognitive decline, including forgetting where she lives, what year it is, and the names of her grandchildren. On exam, there is symmetric cog-wheel rigidity appreciated. What is the most likely diagnosis?
You are asked to see a 64-year-old man with hypertension, hyperlipidemia, and peripheral vascular disease who is post-operative day 1 from an aortic aneurysm repair. On exam, he exhibits bilateral lower extremity weakness, as well as loss of pain and temperature sensation below the umbilicus. Light touch and proprioception are intact in the lower extremities. What is the most likely diagnosis?
A 38-year-old man presents with a 1-year history of neck pain and left upper extremity weakness. The symptoms started insidiously, and have slowly worsened over time. A sagittal cervical spine MRI is shown below (Left: T2 without contrast. Right: T1 with contrast). Which of the following is the most likely cause of his symptoms?
Which of the following diseases does not contribute to the pathology appreciated in this pathology image?
Which of the following medications has a relatively low risk of sexual dysfunction?
A 38-year-old man with a prolonged history of intravenous drug use, HIV, and poor compliance with HAART therapy is brought to the hospital by police after being seen wandering across a busy street intersection. His last CD4 count was 180 cells/microliter 8 months ago. Vitals appear within normal limits on arrival. Neurological examination shows inattention, poor short-term memory, and difficulties with abstract thought. An MRI is performed and shown below. What is the likely etiology of his symptoms?
A 40-year-old male presents with a one-day history of numbness of his right arm. This has never happened before, but he does report an episode of left leg weakness that self-resolved two years ago. The neurological examination confirms a sensory disturbance of his right arm. Sagittal MRI of the cervical spine is shown below (Left: T1, Middle: T1 with contrast, Right: T2). Which of the following is the most likely diagnosis?