Legend Axial T2 and FLAIR images of the temporal lobes show abnormal high signal in the hippocampus and medial temporal lobes, bilaterally, greater on the left side.

Legend Left: Axial FLAIR shows additional subtle hyperintensity in the insular cortex, bilaterally. Right-Upper: Coronal T1 image shows low signal and swelling of the left hippocampus. Right-Lower: Coronal post-contrast T1 image shows mild enhancement of the left hippocampus. Key words: mri infection inflammation

Brain Diagnosis: Herpes simplex encephalitis