[Potential of bony regrowth after deep lateral orbital decompression]

The article describes a very rare case of bony regrowth after deep lateral orbital decompression for thyroid eye disease. Bony regrowth was observed in the area of the resected «trigone» of the greater wing of the sphenoid bone and in the area of the exposed dura mater. This case demonstrates that bony regrowth can be a possible cause of exophthalmos (proptosis) recurrence after orbital decompression in thyroid eye disease without clinical or laboratory evidence of reactivation of the disease.