Homonymous quadrantanopia respecting the horizontal meridian. A feature of striate and extrastriate cortical disease.
It has been proposed that homonymous quadrantanopic visual field loss that respects the horizontal meridian is a pathognomonic sign of extrastriate cortical disease. However, two patients with this sign are reported--one with a rare striate and the other with an extrastriatal lesion of the visual cortex. It is therefore hypothesized that a homonymous quadrantanopia respecting the horizontal meridian may indicate striate and/or extrastriate cortical disease.
McFadzean
R M
RM
Department of Neuro-ophthalmology, Southern General Hospital, Glasgow.
Hadley
D M
DM
D000328:Adult; D001927:Brain Diseases / Q000150:complications / Q000175:diagnosis; D002543:Cerebral Hemorrhage / Q000150:complications; D002544:Cerebral Infarction / Q000150:complications; D006406:Hematoma / Q000150:complications; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009778:Occipital Lobe; D014786:Vision Disorders / Q000209:etiology / Q000503:physiopathology*; D014793:Visual Cortex / Q000473:pathology / Q000503:physiopathology*; D014794:Visual Fields