Pituitary apoplexy

Discussion:

Features of a necrotic/hemorrhagic pituitary macroadenoma with impingement upon the optic chiasm, and cavernous sinus content, particularly on the left. 

Pituitary apoplexy represents a clinical syndrome related to an acute hemorrhagic or ischemic transformation of a pituitary macroadenoma or even the normal adenohypophysis. Clinically it is characterized by a headache, visual impairment, and ophthalmoplegia.

Bleeding in the pituitary gland is clinically silent in most cases 1.

Histology images and report were courtesy of the Royal Melbourne Hospital Pathology Department. 

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