Fig. 19
From: Fibrous dysplasia for radiologists: beyond ground glass bone matrix
Optic nerves in craniofacial fibrous dysplasia (FD) in two different patients. a Extensive FD involving most of the facial bones and skull. Optic canals are narrowed but patent. b–d Expansile bone lesions in the left frontal bone, left sphenoid bones, ethmoid bone, and body of the sphenoid bone with marked narrowing and deformity of the left optic canal, causing left-sided blindness (red arrows). The right optic canal is narrowed (blue arrows). Vision in the right eye is preserved