Abstract
A 41-yr-old man was admitted with acute headache, neck stiffness, and febrile sensation. Cerebrospinal fluid examination showed pleocytosis, an increased protein level and, a decreased glucose concentration. No organisms were observed on a culture study. An imaging study revealed pituitary macroadenoma with hemorrhage. On the 7th day of the attack, confusion, dysarthria, and right-sided facial paralysis and hemiparesis were noted. Cerebral infarction on the left basal ganglia was confirmed. Neurologic deficits gradually improved after removal of the tumor by endoscopic transnasal transsphenoidal approach. It is likely that the pituitary apoplexy, aseptic chemical meningitis, and cerebral infarction are associated with each other. This rare case can serve as a prime example to clarify the chemical characteristics of pituitary apoplexy.