What is called pituitary apoplexy?

Pituitary hemorrhage: Pituitary apoplexy is a sudden hemorrhage (or bleed) into the pituitary gland. This gland sits in your brain behind your eyes where the optic nerve runs. Symptoms include a severe headache and vision difficulties.

Maldevelopment: If te pituitary gland is under or not developed correctly causing hormonal problems ?

Critical problem: When there is a tumor, usually adenoma, growing within the pituitary gland, at the base of the brain, hemorrhage or infarct of the tumor can result in catastrophic headache, visual loss, confusion, disorientation, coma, and likely death. This event is often terminal.

Serious problem: Pituitary apoplexy is an acute hemorrhage into the pituitary gland commonly caused by a pituitary tumor. It can lead to critical problems including blindness, hormonal imbalance and hydrocephalus.