Figure 3.

Fibrous dysplasia: a 69-year-old female presented with seizures. CT scan with bone windows through the skull base shows an expansile right greater wing of sphenoid with ground glass appearance (yellow oval), which is a characteristic location and appearance of fibrous dysplasia. T1W MR image shows an intermediate signal in the right lesser wing sphenoid lesion, with no enhancement on post gadolinium MR image (yellow oval). No diffusion restriction was identified on echo planar imaging (red ovals), suggesting benign etiology. CT: computed tomography; MR: magnetic resonance.