49 year old man presenting with strange behavior
Publication Date: 20130726
This 49 year old man presented to the hospital with confusion and strange behavior. MRI showed an encephalitis, which was later determined to be caused by HSV.
- Which lobe of the brain was primarily affected?Left frontal lobe
Incorrect - at this level, the frontal lobe is not visible.Right temporal lobe
Incorrect. The pathology on this scan is left-sided.Left temporal lobe
Correct! HSV encephalitis classically affects the temporal lobes.Right frontal lobe
Incorrect - this patient has a left-sided encephalitis.Left parietal lobe
Incorrect. Although you do not have another view to confirm location, know that HSV encephalitis is classically a temporal lobe phenomenon.