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BACKGROUND Pituitary adenomas display an array of hormonal and proliferative activity. Once primarily classified according to size (microadenomas, < 1 cm; macroadenomas, > or = 1 cm), these tumors are now further classified according to immunohistochemistry and functional status. With these additional classifications in mind, the goals of the current study(More)
Both stress-system activation and melancholic depression are characterized by fear, constricted affect, stereotyped thinking, and similar changes in autonomic and neuroendocrine function. Because norepinephrine (NE) and corticotropin-releasing hormone (CRH) can produce these physiological and behavioral changes, we measured the cerebrospinal fluid (CSF)(More)
OBJECT The extent of tumor resection that should be undertaken in patients with glioblastoma multiforme (GBM) remains controversial. The purpose of this study was to identify significant independent predictors of survival in these patients and to determine whether the extent of resection was associated with increased survival time. METHODS The authors(More)
OBJECT Metastastic lesions have been reported in 5 to 40% of patients with spinal and sacrococcygeal chordoma, but few contemporary series of chordoma metastastic disease exist in the literature. Additionally, the outcome in patients with chordoma-induced metastastic neoplasms remains unclear. The authors performed a retrospective review of the neurosurgery(More)
OBJECT Little has been written about the appropriate diagnosis, investigation, and management of subarachnoid-pleural fistula (SPF). The authors report a series of patients with SPF that developed after resection of spinal tumor and discuss the diagnosis and treatment of this entity. METHODS Between 1993 and 2002, nine patients with SPF observed after(More)
Rathke cleft cysts (RCCs) are benign cystic lesions of the sella that arise from the remnants of Rathke pouch. Although most are asymptomatic, symptoms can result from mass effect and commonly include headache, endocrinopathy, or visual field disturbance. Although asymptomatic patients undergo conservative treatment, patients with symptoms are typically(More)
BACKGROUND Intracranial hemangiopericytoma (HPC) is a rare malignancy for which treatment recommendations vary. OBJECTIVE We sought to characterize outcomes of HPC patients treated with postoperative external beam radiotherapy (PORT). METHODS A retrospective analysis was conducted using the Surveillance, Epidemiology and End Results (SEER) Program of(More)
OBJECT Anterior approaches to the spine for the treatment of spinal tumors have gained acceptance; however, in most published reports, patients with primary, metastatic, or chest wall tumors involving cervical, thoracic, or lumbar regions of the spine are combined. The purpose of this study was to provide a clear perspective of results that can be expected(More)
OBJECT Multiple craniotomies have been performed for resection of multiple brain metastases in the same surgical session with satisfactory outcomes, but the role of this procedure in the management of multifocal and multicentric glioblastomas is undetermined, although it is not the standard approach at most centers. METHODS The authors performed a(More)