“…P ituitary tumors are relatively common, accounting for 10% to 15% of primary brain tumors. 1 When these tumors are large, they grow into the suprasellar cistern and can lead to compression of the optic chiasm, with consequent visual defects, 2,3 as can happen with other tumors in this region, such as meningioma and craniopharyngioma. As such, an important aspect of their clinical management is surgical decompression of the optic chiasm.…”