Lipid peroxidation in cerebral tumors.

Background: Serum and tissue concentrations of tumor markers or some metabolites are considered to be helpful in diagnosis and follow-up of the central nervous system (CNS) disease. However, markers currently available are not sufficiently sensitive and specific to be used as actual diagnostic tools. Differentiation between the malignant and benign lesions of the CNS is very important, both for determining the optimum therapeutic approach and to predict morbidity and mortality of the disease.

Angiographically occult epidural arteriovenous fistula of the craniocervical junction.

Background: Spinal dural and intradural arteriovenous fistulas (AVFs) have been the subject of numerous reports but purely epidural AVFs causing venous congestion within the spinal cord are rare.

Case Description: We describe a patient with an exclusively epidural arteriovenous fistula and congestive myelopathy. There are three interesting features of this case as described below: 1) The presence of a purely epidural AVF of the cranio-cervical junction.

Meningiomas in childhood and adolescence: a report of 13 cases and review of the literature.

Meningiomas are relatively uncommon in childhood. They represent 1 to 2% of all intracranial tumours of infancy and childhood. During the last 30-year period, from 1964 to 1993, 13 children with a diagnosis of meningioma were operated on at the Department of Neurosurgery, Hacettepe University School of Medicine.

Catecholamine-secreting carotid body tumor and intracranial aneurysm: coincidence?

Background: An extremely rare case of intracranial aneurysm associated with catecholamine-secreting carotid body tumor is presented.

Case Description: A 64-year-old woman suffering from hypertensive attacks was admitted first to the Otolaryngology Department with a neck swelling. Right common carotid angiography revealed a hypervascular mass at the carotid bifurcation.

Primary intracranial germ cell tumors in children: a report of eight cases and review of the literature.

This study was conducted to evaluate the signs and symptoms on admission, diagnosis, localization, therapy, and survival of patients with primary intracranial germ cell tumors (PICGCT). Eight patients with surgically confirmed PICGCTs were treated and followed up at Hacettepe University's Department of Pediatric Oncology between 1974 and 1995. While one patient was admitted with a second recurrence of her disease, the others were admitted or referred primarily to our institution.