aracnoiditis

No abstract text is available yet for this article.

No abstract text is available yet for this article.

Meningiomas are benign tumors developed from aracnoid meningeal cells. Its primary extracranial and extravertebral onset is a rarity, arising more frequently in the scalp and orbit. Its beginning in nasal fosae is considered exceptional. Diagnosis will be based on cranial CTY scan and histology of the whole tumour once extirpated. A case of advanced primary nasal meningioma is reported. The AA. emphasize the difficulties in presurgical diagnosis in this type of growths.

The authors review the main pathologic causes of congenital hydrocephalus from ischemic-vascular injuries, embryofoetal infections and dysraphisms to genetic ones. Abundant illustrations of each condition are furnished and particular attention is paid to each situation, discussing the available pathogenetic mechanisms and hypothesis. Genetic "sine causa" hydrocephalus and X-linked hydrocephalus are mainly stressed, presenting some personal data. The clinic aspects of the varying forms of hydrocephalus are continuously kept in mind and a terminal paragraph details the clinical and neuroradiological means determinant in differential diagnosis versus similar conditions such as hydranencephaly, porencephaly, aracnoid cysts, holoprosencephaly and agenesis of corpus callosum...

We have reported a rare case of spontaneous 3rd ventriculostomy with spontaneous arrest of obstructive hydrocephalus. A 41 year old man, who had had an intermittent headache for about a year, was admitted to the department of neurosurgery Kitasato University with chief complaints of sudden onset of severe headache, vomiting and disturbance of consciousness. At the time of admission, 30 minutes after the onset of symptoms, the positive neurological findings were delirious state of consciousness, miotic pupils with sluggish reaction to light, mild hemiparesis on the left site and slight nucnal rigidity...