Neurosurgery
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Case Reports
Anterior selective amygdalohippocampectomy: technical description and microsurgical anatomy.
We introduce a technique for performing a selective amygdalohippocampectomy (AH) through a minisupraorbital approach. ⋯ The anterior route for selective AH is a logical and straightforward approach to the mesial temporal lobe. Compared with other variations, it is less invasive and destructive, especially in terms of the fibers of the optic pathway, temporal stem, and lateral temporal neocortex.
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Stereotactic radiosurgery (SRS) of meningiomas is associated with posttreatment peritumoral edema (PTE). The purpose of this study was to evaluate the prevalence and risk factors of post-SRS PTE for intracranial meningiomas. ⋯ Post-SRS PTE is common in patients with meningioma. Tumor-brain contact interface area and preexisting PTE were the most significant risk factors for post-SRS PTE. Tumor volume and tumor-brain contact interface area were significant risk factors for the development of preexisting PTE.
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The arachnoid membrane in the suprasellar region may affect the growth pattern of sellar and suprasellar tumors however, the topographic relationships between the pituitary stalk and the surrounding arachnoid membranes remained unclear. ⋯ The relationship between the pituitary stalk and the surrounding arachnoid membrane is important in evaluating the growth patterns of the sellar and suprasellar tumors, and their topographical relationships.
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En bloc resection, with adequate surgical margins, of primary malignant bone tumors of the sacrum is associated with long term disease control and potential cure. Resection of sacral tumors is difficult due to the proximity of neurovascular and visceral structures, and complete, or even partial, sacrectomy often results in functional loss for the patient. ⋯ This technique for midsacral amputation to remove a sacral tumor en bloc minimizes local recurrence and maximizes neurovascular function.