title: Homonymous Sectoranopia: Asymptomatic Presentation of a Lateral Geniculate Nucleus Lesion.
abstract: This is a rare presentation of brain tumour in the region of the lateral geniculate nucleus (LGN) presenting as a homonymous horizontal sectoranopia (HHS). The case highlights that subtle field defects can be asymptomatic and only detected by formal perimetry. Although homonymous sectoranopia is a rare form of visual field defect, it should be recognised as a potential manifestation of potentially significant intracranial pathology.
authors.affiliation: Medical Eye Unit, St. Thomas' Hospital , London, UK.
authors.forename: Saruban
authors.initials: S
authors.lastname: Pasu
authors.affiliation: Medical Eye Unit, St. Thomas' Hospital, London, UK, ; Institute of Neurology, University College London, London, UK.
authors.forename: Basil H
authors.initials: BH
authors.lastname: Ridha
authors.affiliation: Medical Eye Unit, St. Thomas' Hospital , London, UK.
authors.forename: Vijay
authors.initials: V
authors.lastname: Wagh
authors.affiliation: Division of Neurology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University , Bangkok, Thailand , and.
authors.forename: Panitha
authors.initials: P
authors.lastname: Jindahra
authors.affiliation: Department of Radiology, St. Thomas' Hospital , London, UK.
authors.forename: Ata
authors.initials: A
authors.lastname: Siddiqui
authors.affiliation: Medical Eye Unit, St. Thomas' Hospital, London, UK, ; Institute of Neurology, University College London, London, UK.
authors.forename: Gordon
authors.initials: G
authors.lastname: Plant
authors.affiliation: Medical Eye Unit, St. Thomas' Hospital , London, UK.
authors.forename: Miles
authors.initials: M
authors.lastname: Stanford
keywords: Homonymous horizontal sectoranopia; glioma; lateral choroidal artery; lateral geniculate nucleus