A 19-year-old male college student, Ankit is brought to the emergency department by his roommate. Over the past 2 days, he has become increasingly confused and disoriented. He was previously healthy but had been studying intensely and staying up late. The roommate noticed he had a fever and wasn’t making sense when he spoke. Today, he began having generalized seizures.
On examination:
- Temperature: 38.9°C
- BP: 118/76 mmHg, HR: 98 bpm
- He is drowsy but arousable.
- Oriented to person but not place or time
- No neck stiffness
- No focal neurological deficits
- CSF: lymphocytic pleocytosis, elevated protein, normal glucose
- MRI: hyperintensities in temporal lobes
- EEG: periodic sharp waves in the temporal regions