A 40-year-old administrative assistant presents with daily h…

A 40-year-old administrative assistant presents with daily headaches that she describes as a dull, pressure-like pain around the forehead and occipital area. The pain is bilateral, non-pulsatile, and is not associated with nausea, vomiting, photophobia, or aura. She notes that the headaches often begin in the afternoon and are worse during periods of stress. Over-the-counter analgesics provide some relief. What is the most likely patient’s diagnosis?

A 29-year-old woman presents with intermittent visual distur…

A 29-year-old woman presents with intermittent visual disturbances, right arm weakness, and numbness in the left leg. MRI of the brain and spinal cord reveals multiple demyelinating lesions in both supratentorial and spinal regions. Which of the following best explains the asymmetric and varied presentation of her symptoms?

A 24-year-old man is brought to the emergency department by…

A 24-year-old man is brought to the emergency department by his family due to increasingly bizarre behavior over the past month. He reports that he hears voices telling him he is being watched and believes the government is monitoring his actions through the television. He is diagnosed with schizophrenia. Which of the following symptoms is most directly linked to this dopamine hyperactivity?