Visual loss in a 42-year-old man

A 42-year-old man developed blurred vision and tvas found to have a right, incongruous, inferior homonymous quadrantanopia. Neuroimaging disclosed a s uprasellar mass. The mass was thought to be a pituitary adenoma that was co mpressing the left optic tract, and transsphenoidal surgery was planned; ho wever, because the defect was primarily inferior, indicating damage to the superior aspect of the optic tract, it was recommended that a craniotomy be performed. The mass was found at surgery to be a craniopharyngioma. (Surv Ophthalmol 44:507-512, 2000. (C) 2000 by Elsevier Science Inc. All rights r eserved.).