CASE 10: Male teenager with loss of consciousness (follow-up included)

Ok this next case is an interesting one beacuse it has the follow up.

Patient came two months ago with history of headache and underwent a CT scan..

Now, he was admitted to ED with history of loss of consciousness, seizures and fever. Now we did an MR study, here are the images with the relevant findings..

Describe findings..submit differentials. Soon I'll post the conclusion..