Transconjunctival resection of an orbital dermoid tumour.

An unusual case of an orbital dermoid tumour containing a well differentiated tooth-like structure is documented. A previously unreported surgical approach to a maxillofacial dermoid tumour is introduced. Using a conjunctival incision, orbital floor exploration was undertaken with excellent visibility and access. A large dermoid tumour was removed without the need for an external skin incision. The surgical approach and pathology of this unusual lesion are reviewed.