Pituitary apoplexy

Visual field loss in bitemporal hemianopsia: compression of the optic chiasm leads to a characteristic pattern of vision loss affecting the outer halves of each eye.

Normal pituitary gland on MRI (T1 sagittal without contrast enhancement). The arrow points at the posterior pituitary (intense signal), and the arrowhead at the anterior pituitary.

Pituitary apoplexy or pituitary tumor apoplexy is bleeding into or impaired blood supply of the pituitary gland at the base of the brain. This usually occurs in the presence of a tumor of the pituitary, although in 80% of cases this has not been diagnosed previously. The most common initial symptom is a sudden headache, often associated with a rapidly worsening visual field defect or double vision caused by compression of nerves surrounding the gland. This is followed in many cases by acute symptoms caused by lack of secretion of essential hormones, predominantly adrenal insufficiency.

单词	Pituitary apoplexy
释义	Pituitary apoplexy 原声例句 Osmosis-内分泌 It is a rare type of pituitary apoplexy. 这是一种罕见的脑垂体卒中。英语百科 Pituitary apoplexy Pituitary apoplexy or pituitary tumor apoplexy is bleeding into or impaired blood supply of the pituitary gland at the base of the brain. This usually occurs in the presence of a tumor of the pituitary, although in 80% of cases this has not been diagnosed previously. The most common initial symptom is a sudden headache, often associated with a rapidly worsening visual field defect or double vision caused by compression of nerves surrounding the gland. This is followed in many cases by acute symptoms caused by lack of secretion of essential hormones, predominantly adrenal insufficiency.
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