Fig. 9
From: Intracranial emergencies in neurosurgical oncology: pathophysiology and clinical management
Sagittal and coronal T1-weighted MRI showing evidence of pituitary apoplexy. A pituitary tumor fills the sella and extes into the suprasellar space, where it compresses the optic chiasm and the pituitary gland, causing sudden severe headache, loss of vision, and low levels of anterior pituitary hormones causing asthenia. A subarachnoid component of bleeding is seen at the upper pole of this tumor, as occasionally in pituitary apoplexy blood leaks into the subarachnoid space and intensifies the patient’s symptoms