Teenager who is immune suppressed with headaches Pediatric Imaging Neurological November 14, 2022October 13, 2022 Axial FLAIR (above) MRI without contrast of the brain shows a small round lesion in the left frontal lobe with surrounding edema that demonstrates ring-shaped restricted diffusion on diffusion-weighted imaging (below). The diagnosis was cryptococcosis. Related Published November 14, 2022October 13, 2022