The optic chiasm is directly above the pituitary gland and is subject to ... and headache or obtundation. If the CT scan is suspicious for pituitary apoplexy, an MRI scan will distinguish the ...

Review of the Anatomy and Physiology of the Pituitary Gland The adult pituitary gland weighs approximately 500-600 g and is typically 1.2-1.5 cm in diameter and 0.5 cm thick, occupying ...