29th April 2024

A 65-year-old man with a history of chronic alcohol use presents with a two-week history of increasing confusion, slurred speech, and unsteadiness on his feet.

A 65-year-old man with a history of chronic alcohol use presents with a two-week history of increasing confusion, slurred speech, and unsteadiness on his feet. He does not recall any recent head injury. His family notes that he has been increasingly drowsy. On examination, he is oriented to person but not to time or place. He has a mild left-sided weakness. A CT scan of the head reveals a crescent-shaped hyperdensity over the right cerebral hemisphere.

Which is the most likely diagnosis?