Optic Disc Deformation and Orbital Bone Erosion Secondary to a Huge Neglected Orbital Cavernous Hemangioma

: Cavernous hemangioma (CH) is the most common benign tumor of the orbit which can expand the bony orbit by gradual growth of a large tumor. In this article, the authors report a 28-year-old man presented with a longstanding unilateral proptosis secondary to a huge orbital CH which also caused optic disc deformation and bone erosions in the adjacent orbital walls. The optic disc deformities resolved after the tumor removal.