02-06-2008, 06:24 PM
A 50-year-old man is admitted to the emergency department because of a 3-day history of
disorientation, memory loss and unsteadiness of gait. On physical examination he is disoriented, is
agitated and has short-term memory loss. He also has bilateral abducens (VI) nerve palsies, nystagmus
and ataxia. The most likely diagnosis is
(A) an abscess in the left cerebral hemisphere
(B) meningioma of the frontal lobe
© multiple sclerosis
(D) vitamin B12 deficiency
(E) Wernicke encephalopath
disorientation, memory loss and unsteadiness of gait. On physical examination he is disoriented, is
agitated and has short-term memory loss. He also has bilateral abducens (VI) nerve palsies, nystagmus
and ataxia. The most likely diagnosis is
(A) an abscess in the left cerebral hemisphere
(B) meningioma of the frontal lobe
© multiple sclerosis
(D) vitamin B12 deficiency
(E) Wernicke encephalopath