Craniofacial surgery and optic canal decompression in adult fibrous dysplasia.

A 29-year-old female had a 3-year history of bony swelling over the right frontal area. For 3 months she noticed proptosis of her right eye. Investigations revealed fibrous dysplasia involving the right half of the frontal bone and the right greater and lesser wings of the sphenoid bone. Visual evoked potentials (VEP) showed delayed latencies on the involved side. A craniofacial surgery with optic canal decompression was performed. Follow-up after 2 years revealed normalization of VEP.