Accepted 16 October 1995 A 44-year-old man had suffered from headache, general fatigue and impotence for three months. Physical examination revealed a bitemporal visual field defect. Skull X-ray films showed ballooning of the sella turcica. Magnetic resonance imaging (MRI) revealed an intrasellar cystic mass compressing optic chiasma (figure). The cyst was removed by a transsphenoidal approach....
