Minim Invas Neurosur
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Minim Invas Neurosur · Jun 2003
Case ReportsGiant cyst of the cavum septi pellucidi, cavum Vergae and veli interpositi.
The authors report a case study of a giant cyst of the cavum septi pellucidi, cavum Vergae and veli interpositi spreading to the posterior fossa, and initially treated elsewhere by ventriculoperitoneal shunt, with no resolution of the symptomatology. A few months later the patient was successfully treated by fenestration into the ventricular system through a neuroendoscopic technique, at the Pediatric Neurosurgical Center of the Meyer Children's Hospital in Florence. Symptomatic midline cysts are quite rare and different techniques have been proposed for their treatment, i. e., direct craniotomy, conventional shunting, stereotactic approaches as well as endoscopic fenestration. ⋯ In the present research the authors analyze the anatomy of the midline cavities and the mechanism through which a cyst may become symptomatic. The surgical endoscopic technique and the clinical and radiological assessments which confirmed the patency of the fenestration are also discussed. The authors conclude that endoscopic ventricular fenestration may represent the treatment of choice for this pathology.
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To investigate the anatomic characteristics of Liliequist's membrane. ⋯ Liliequist's membrane is an important landmark for the operations in the sellar area or skull base. Understanding the microanatomy of Liliequist's membrane may be helpful for us to improve the exposure and minimize the injuries during the operations.
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Minim Invas Neurosur · Jun 2003
Characterization of risk factor differences in perimesencephalic subarachnoid hemorrhage.
The non-aneurysmal perimesencephalic subarachnoid hemorrhage (p-SAH) has a favorable outcome. Our objective was to provide a reason for that assessing the association of putative risk factors with this different type of hemorrhage in comparison to the aneurysmal subarachnoid hemorrhage (a-SAH). ⋯ A different association between possible risk factors and the two types of subarachnoid hemorrhages was ascertained. In general there seem to be fewer putative risk factors in the perimesencephalic SAH cases compared to the typical aneurysmal hemorrhages.