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A member asked:
Please help! what is the role of pituitary gland in causing bitemporal hemianopia?
A doctor has provided 1 answer
Pituitary tumors: Hi. the optic chiasm (optic nerves; some of them cross sides) is right above the pituitary. Big pituitary tumors can push up out of the pituitary's bony pocket (the sella) and push against the parts of the optic nerves that cross (they see lateral/temporal visual fields) and cause bitemporal hemianopsia; the parts of the optic nerves that see the medial visual fields are spared.
Answered 7/14/2014
3.9k views
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