This 46 year old man developed an acute confusional state. He was agitated and complained of visual problem. He was able to see the letters on the Snellen Chart but was unable to read them. Visual field examination was difficult as he could not maintain his fixation. Neurological examination showed he had a right/left disorientation. An urgent CT scan was requested.

a. What does the CT scan show?

b. What clinical signs may be present on further physical examination?