A 70 years old man presents with difficulty speaking and comprehending spoken language, and an inability to raise his right arm. His wife reports he was speaking with no noticeable deficits the previous hour. On exam, there are visual field deficits in his left eye and he struggles to answer questions. There is a history of treated HTN and diabetes. What are the most important differential diagnoses?

Of the relevant differential diagnoses, it is important to rule out a brain tumor, aneurysm, intracerebral hemorrhage, and hypertensive encephalopathy.

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This post was written by Omar Rifai