title: Temporal crescent syndrome with magnetic resonance correlation.
abstract: BACKGROUND
  A young woman with a history of controlled hypertension noted a suddenly decreased peripheral temporal field in the left eye. This occurred after moderate peripartum hypertension.
  
  
  METHODS
  A monocular peripheral temporal crescentic defect could be plotted on Goldmann visual fields despite a normal dilated peripheral retinal examination and normal disc appearance.
  
  
  RESULTS
  A dilated parieto-occipital sulcus could be seen on computed tomography, and magnetic resonance imaging showed changes consistent with atrophy and gliosis in the cuneus, precuneus, and anterior calcarine cortex surrounding the parieto-occipital sulcus.
  
  
  CONCLUSIONS
  By magnetic resonance imaging, this can be seen to comprise less than 10% of the visual cortex, as suggested by the Horton and Hoyt revised Holmes map. The temporal crescent syndrome is a rare monocular retrochiasmatic visual field defect that can be correlated to a lesion along the parieto-occipital sulcus.
authors.affiliation: Department of Ophthalmology, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia.
authors.forename: P S
authors.initials: PS
authors.lastname: Chavis
authors.forename: A
authors.initials: A
authors.lastname: al-Hazmi
authors.forename: D
authors.initials: D
authors.lastname: Clunie
authors.forename: W F
authors.initials: WF
authors.lastname: Hoyt
mesh_terms: D000328:Adult; D001794:Blood Pressure; D001921:Brain / Q000473:pathology*; D001927:Brain Diseases / Q000150:complications / Q000175:diagnosis*; D005260:Female; D006423:Hemianopsia / Q000209:etiology*; D006801:Humans; D006973:Hypertension / Q000150:complications; D008279:Magnetic Resonance Imaging; D013577:Syndrome; D014792:Visual Acuity; D014794:Visual Fields