Intraventricular hemorrhage from pituitary apoplexy

The case of a patient with a massive intraventricular hemorrhage arising from a pituitary chromophobe adenoma is described. This rare and disastrous complication was ascribed to the large suprasellar extension of the tumor and its close proximity to the floor of the third ventricle. Hemorrhage in the tumor extended along the path of least resistance and ruptured into the third ventricle. A partially treated hyperviscosity syndrome and chemotherapy for an unrelated malignancy (multiple myeloma) may have predisposed the patient to the necrosis and hemorrhage in the pituitary tumor.