Neurosurgery
-
Review Comparative Study Clinical Trial
Olfactory groove meningiomas from neurosurgical and ear, nose, and throat perspectives: approaches, techniques, and outcomes.
To review the surgical approaches, techniques, outcomes, and recurrence rates in a series of 80 olfactory groove meningioma (OGM) patients operated on between 1990 and 2003. ⋯ A variety of surgical approaches are used for OGM resection. An approach tailored to the tumor's size, location, and extension, combined with modern microsurgical cranial base techniques, allows full OGM removal with minimal permanent morbidity, excellent neurological outcome, and very low recurrence rates.
-
Review Case Reports Comparative Study
"Disc cysts" and "posterior longitudinal ligament ganglion cysts": synonymous entities? Report of three cases and literature review.
Extradural cysts intimately associated with relatively normal lumbar discs have rarely been reported. Histologically nonspecific, most have been designated posterior longitudinal ligament (PLL) or annulus fibrosus (AF) "ganglion cysts." Recently, "disc cysts" have been distinguished as a separate entity, mostly on the grounds of cyst-disc communication. ⋯ Our results and those of others suggest that all such cysts are ganglion cysts that derive from either the AF or the PLL at the disc level. Although disc cysts might be AF ganglion cysts exhibiting disc communication, their separate distinction is probably unnecessary. Cystectomy alone affords complete symptomatic remission; discectomy is usually unnecessary. Although anticipated with ganglia in general, neither spontaneous resolution nor postoperative recurrences have been witnessed. Unlike ganglia in general or juxtafacet ganglion cysts, such cysts seem to be unusually restricted to young men.
-
Review Case Reports
Spinal arachnoid cyst related to a nonaneurysmal perimesencephalic subarachnoid hemorrhage: case report.
We report the first case of a delayed symptomatic spinal arachnoid cyst related to a nonaneurysmal perimesencephalic hemorrhage. We review the literature concerning posthemorrhagic spinal arachnoid cysts. ⋯ This extremely rare complication should be kept in mind when delayed lower-limb neurological deficits appear after subarachnoid hemorrhage, even in a perimesencephalic form.