Using sellar region tumor's size as a predictor of psychophysical and electrophysiological perimetric visual losses: a logistic regression approach.

Background: Sellar region tumor growth represents an important cause of visual loss due to mechanical compression of the optic nerve apparatus. Many investigations have used non-invasive tools to evaluate the visual field consequences of this damage, and good associations have been reported between psychophysical and electrophysiological perimetries. Few reports have considered the tumor size as a predictor of visual field loss.

Bleeding risk of small intracranial aneurysms in a population treated in a reference center.

Objective: Large multicenter studies have shown that small intracranial aneurysms are associated with a minimal risk of bleeding. Nevertheless, other large series have shown that most ruptured aneurysms are, in fact, the smaller ones. In the present study, we questioned whether small aneurysms are indeed not dangerous.

Cerebral biopsy: comparison between frame-based stereotaxy and neuronavigation in an oncology center.

Treatment of intracranial tumoral lesions is related to its correct histological diagnostic. We present a retrospective analysis of 32 patients submitted to 36 cerebral biopsies using neuronavigation and 44 patients using frame-based stereotaxy. Mean age was 46.

Vein of Galen aneurysm in an adult: case report.

Vein of Galen aneurysm is a rare pathology, representing less than 1% of intracranial vascular malformations. We report on a 65-year-old man who experienced a generalized tonic-clonic seizure. Brain imaging showed a large calcified expanding mass in the pineal region, confirming the diagnosis of a vein of Galen aneurysm.

[Punctate midline myelotomy for the treatment of oncologic visceral pain: analysis of three cases].

Introduction: A new midline posterior column pathway related to visceral pain has been recently discovered.

Objective: To present its interruption by a punctate midline myelotomy providing significant visceral oncologic pain relief.

Method: Three patients with abdominal cancer refractory pain from opiate analgesics were treated by a punctate midline myelotomy through thoracic laminectomy.