title: 'Ancient' schwannoma of the orbit.
abstract: A 65-year-old woman presented with a 3 month history of right eye discomfort and protrusion. Examination revealed right proptosis with hypoglobus and diplopia in extremes of upgaze. Computed tomographic scanning revealed a large extraconal mass in the superotemporal orbit. The mass was excised through an extended superior skin crease incision. Histopathology revealed a benign tumour of Schwann cell origin showing advanced cystic degeneration, the so-called 'ancient schwannoma'. The authors could find only two previously reported cases of such tumours arising in the orbit.
authors.affiliation: Department of Ophthalmology, Pacific Laboratory Medicine Services, Royal North Shore Hospital, Sydney, New South Wales, Australia.
authors.forename: Gregory
authors.initials: G
authors.lastname: Moloney
authors.forename: Janice
authors.initials: J
authors.lastname: Brewer
authors.forename: Brett A
authors.initials: BA
authors.lastname: O'Donnell
mesh_terms: D000368:Aged; D004172:Diplopia / Q000175:diagnosis; D005094:Exophthalmos / Q000175:diagnosis; D005260:Female; D006801:Humans; D009442:Neurilemmoma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D009918:Orbital Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed