title: Primary Ewing's sarcoma of the orbit presenting with visual loss.
abstract: A case of primary Ewing's sarcoma of the orbit and paranasal sinuses in a 6-yearold boy is reported. The child presented with headaches and unilateral visual loss. Loss of vision as a result of optic nerve involvement with primary Ewing's sarcoma is extremely rare.
authors.affiliation: Department of Ophthalmology, Hospital for Sick Children, Toronto, Ontario, Canada.
authors.forename: G
authors.initials: G
authors.lastname: Woodruff
authors.forename: P
authors.initials: P
authors.lastname: Thorner
authors.forename: B
authors.initials: B
authors.lastname: Skarf
mesh_terms: D001766:Blindness / Q000209:etiology*; D002648:Child; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D009900:Optic Nerve / Q000473:pathology; D009918:Orbital Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging / Q000648:ultrastructure; D010255:Paranasal Sinus Neoplasms / Q000150:complications / Q000000981:diagnostic imaging; D012512:Sarcoma, Ewing / Q000150:complications* / Q000000981:diagnostic imaging / Q000648:ultrastructure; D014057:Tomography, X-Ray Computed