Legend Axial T2 images demonstrate multiple lesions scattered throughout the thalami, deep white matter and at the corticomedullary junction. Extensive vasogenic edema results.

Legend The lesions are hypointense on pre gad T1 images on the left. A single post-gad coronal image (right) reveals ring enhancement of one of these lesions.

Legend Additional axial and coronal post gad images (top left and middle respectively) reveal an additional ring enhancing mass in the right temporal lobe. No restricted diffusion is seen (far right).

Legend Spectrum 1 in the area of signal abnormality reveals marked elevation of lactate/lipid with decreased NAA. Spectrum 2 is normal. Key words: mri mrs dwi infection inflammation AIDS

Brain Diagnosis: Toxoplasmosis