Case 2. a–c First MRI examination. A-T1W transversal, B-T2W transversal, C-T1W with contrast transversal magnetic resonance images. Normal appearance of the brain. Case 2. e–h Second MRI examination of the brain 4 days later. E-T1W transversal, F-T2W transversal, G-T1W with contrast transversal, H-FLAIR dorsal magnetic resonance images. Arrows indicate bilateral hyperintensity in the hippocampus in T2W + FLAIR and contrast enhancement in T1W + C. Magnetic resonance imaging findings consists of moderate bilateral symmetric T2-hyperintensity of the hippocampus. Marked bilateral hyperintensity of the hippocampus is seen in FLAIR and mild contrast enhancement bilaterally in the hippocampus in T1W post-contrast. d D-two T2W sagittal magnetic resonance images with one reference line located in rostral midbrain indicating where the transversal slices were obtained and one reference line showing the level where the dorsal FLAIR slice obtained.