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Chronic subarachnoid hemorrhage may cause deposition of hemosiderin on the leptomeninges and subpial layers of the neuraxis, leading to superficial siderosis (SS). The symptoms and signs of SS are progressive and fatal. Exploration of potential sites responsible for intrathecal bleeding and subsequent hemosiderin deposition may prevent disease progression.(More)
BACKGROUND The vicinity of brainstem and cranial nerves as well as the limited operative working space make clip ligation of posterior inferior cerebellar artery (PICA) aneurysms challenging. The small caliber of the PICA and the broad neck often associated with these aneurysms also create challenges in preserving this artery during treatment. Few data(More)
OBJECT Reports of outcomes for surgical treatment of cortical dysplasia associated with epilepsy are conflicting due to the inclusion of patients with a wide range of malformations of cortical development. The authors report their experience and the long-term outcome for a subgroup of patients with the histopathological diagnosis of focal cortical dysplasia(More)
OBJECT Surgical treatment options for intractable seizures caused by a nonlesional epileptogenic focus located in the central sulcus region are limited. The authors describe an alternative surgical approach for treating medically refractory nonlesional perirolandic epilepsy. METHODS Five consecutive patients who were treated between 1996 and 2000 for(More)
The human skull is a complex structure that deserves continued study. Few studies have directed their attention to the development, pathology, and molecular formation of the human calvaria. A review of the medical literature using standard search engines was performed to locate studies regarding the human calvaria. The formation of the human calvaria is a(More)
OBJECT Pediatric intracranial aneurysms are rare lesions that differ from their adult counterparts. Aneurysms involving the middle cerebral artery (MCA) are particularly challenging to treat in children, as they are often fusiform and cannot undergo direct clipping alone. The authors recently treated a patient with a heavily calcified, dysplastic,(More)
OBJECT Intravenous fluorescein sodium has been used during resection of high-grade gliomas to help the surgeon visualize tumor margins. Several studies have reported improved rates of gross-total resection (GTR) using high doses of fluorescein sodium under white light. The recent introduction of a fluorescein-specific camera that allows for high-quality(More)
The dura mater is important to the clinician as a barrier to the internal environment of the brain, and surgically, its anatomy should be well known to the neurosurgeon and clinician who interpret imaging. The medical literature was reviewed in regard to the morphology and embryology of specifically, the intracranial dura mater. A historic review of this(More)
Transsphenoidal approaches to pituitary tumors have undergone a rigorous test of time since the introduction of the first technique by Schloffer in 1907. Harvey W. Cushing played an instrumental role in launching the era of pituitary surgery by popularizing the transsphenoidal route between 1909 and 1929. Cushing performed his first transsphenoidal(More)
Stereotactic needle biopsy is valuable for tissue diagnosis of suspected high-grade gliomas, but limited by a sampling error that can lead to inappropriate grading of the tumor or failure to provide diagnosis. Increasing the number of biopsy attempts can increase morbidity. The authors designed a protocol to increase safety and efficiency of the procedure.(More)