Superior quadrantic hemianopia is caused by:
SUPERIOR QUADRANTANOPIA / PIE IN THE SKY - Inferior fibres are damaged - Inferior fibres pass through temporal lobe - ALL PIE IN THE SKY ARE SEEN IN OPPOSITE TEMPORAL LOBE LESIONS LESIONS Disc/optic nerve lesions Same sided monocular blindness Chiasmal lesions Bitemporal Hemianopia Optic tract lesions (mc) Incongruous Homonymous hemianopia Lt. Geniculate body lesions Incongruous Homonymous hemianopia Meyer's loop (Temporal lobe) Pie in the sky Baum's loop (parietal lobe) Pie on the Floor Occipital lobe lesion Congruous Homonymous hemianopia with macular sparing Both pituitary adenoma and a craniopharyngioma can also cause chiasmal compression and produce visual field defects. However, they both end up producing typical type of junctional scotomas rather than quadrantic defects and are hence not considered to be causes for the later. Extra benefit - Junctional scotomas are visual field defects due to anterior or posterior chiasmal lesions and not typical central or temporal lesions.
Craniopharyngioma
Meningioma
Pituitary adenoma
Temporal lobe lesion
Neuro Ophthalmology