A 79-year old woman was presented with a 1-year history of gradual neurologic deterioration. The symptoms involved confusion, memory loss, imbalance, and incontinence. On examination, she was oriented only to self and had mild nonfluent aphasia. Non-contrasted CT (Image A) and MRI (Image B and C) was performed.

What is the most likely diagnosis? How would you manage this patient? *This case is from Docplexus editorial team for educative purpose only. Source: NEJM