Case #24

CT

• Vasogenic edema in the right parieto-occipital white matter with minimal corresponding mass effect

MRI

• Peripherally-enhancing lesion in the right occipital lobe measuring 1.7 x 1.3 x 1 cm with surrounding vasogenic edema and minimal local mass effect
• Small area of restricted diffusion centrally in the lesion with a faint rim of restricted diffusion along the margins of the area of vasogenic edema surrounding the lesion