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The gyral morphology of the region of the primary auditory cortex (PAC) in the human brain is highly variable, and possible asymmetries between the hemispheres have been noted since the beginning of the century. We mapped the location and extent of PAC as identified from gross anatomical landmarks in magnetic resonance scans that had been transformed into(More)
The pars opercularis occupies the posterior part of the inferior frontal gyrus. Electrical stimulation or damage of this region interferes with language production. The present study investigated the morphology and morphometry of the pars opercularis in 108 normal adult human cerebral hemispheres by means of magnetic resonance imaging. The brain images were(More)
OBJECT Cerebral vasospasm after subarachnoid hemorrhage (SAH) continues to be a major source of morbidity in patients despite significant clinical and basic science research. Efforts to prevent vasospasm by removing spasmogens from the subarachnoid space have produced mixed results. The authors hypothesize that lumbar cisternal drainage can remove blood(More)
OBJECT This study was conducted to investigate the familial and genetic contribution to intracranial, abdominal aortic, and all other types of aneurysms, and to define familial relationships among patients who present with the different aneurysm types. METHODS The authors used a unique Utah resource to perform population-based analysis of the familial(More)
OBJECTIVE To describe a simple technique for extraction of broken pedicle screw fragments using a high-speed drill and to discuss additional extraction techniques presented in the literature. TECHNIQUE The broken pedicle screw is removed by drilling a pilot hole with a side-cutting bit next to and along the long axis of the fragment in the superior aspect(More)
OBJECTIVE To describe and anatomically analyze the amount of exposure provided by an anterior subtemporal, medial transpetrosal approach to access the upper third of the basilar artery, ventral mesencephalon, pons, and posterior cavernous sinus. PATIENTS AND METHODS The outcomes of six patients who underwent surgical treatment via the anterior(More)
OBJECT Cerebral vasospasm that is caused by aneurysmal subarachnoid hemorrhage and that is refractory to maximal medical management can be treated with selective intraarterial papaverine infusions. The effects of single papaverine treatments on cerebral circulation time are well known. The purpose of this study was to assess the efficacy of multiple,(More)
OBJECTIVE The middle fossa approach (MFA) is not used as frequently as the traditional translabyrinthine and retrosigmoid approaches for accessing vestibular schwannomas (VSs). Here, MFA was used to remove primarily intracanalicular tumors in patients in whom hearing preservation is a goal of surgery. METHODS A retrospective chart review was performed to(More)
Aneurysmal bone cysts (ABC) were originally described by Jaffe and Lichtenstein [Arch Surg 1942;44:1004-1025] in 1942 as nonneoplastic benign lesions with obscure pathogenesis. ABC occurring in the temporal bone are uncommon. Those arising from the petrous portion of the temporal bone are exceedingly rare. We report a right petrous ABC in a 16-year-old girl(More)