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Clinical History:
A 21-year old lady presented with fever, headache and confusion for 1 day. Physical examination showed reduced GCS E4V1M5 with neck rigidity. She had history of hiking and mosquito bites. Magnetic resonance imaging (MRI) was performed (6 images – upper row: axial T1-weighted image, axial T2-weighted image; middle row: diffusion-weighted image (DWI), apparent diffusion coefficient (ADC); lower row: axial T1 weighted image; axial T2 weighted image)