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  • Title: Paramedian supracerebellar transtentorial approach for a medial tentorial meningioma with supratentorial extension: technical case report.
    Author: Uchiyama N, Hasegawa M, Kita D, Yamashita J.
    Journal: Neurosurgery; 2001 Dec; 49(6):1470-3; discussion 1473-4. PubMed ID: 11846950.
    Abstract:
    OBJECTIVE AND IMPORTANCE: The choice of surgical approach to treat medial tentorial meningiomas is crucial and sometimes difficult to make. Although the subtemporal approach is most commonly used for lesions that extend mostly supratentorially, it risks injury to the vein of Labbé or the veins coursing along the subtemporal surface. To avoid venous injury, a medial tentorial meningioma was removed transtentorially through the infratentorial space via the paramedian supracerebellar transtentorial (PSCTT) approach. CLINICAL PRESENTATION: A 35-year-old right-handed woman presented with a generalized convulsion. Magnetic resonance imaging scans revealed a left medial tentorial meningioma with supratentorial extension at the dominant hemisphere. The main venous drainage route from the ipsilateral temporal lobe was a sphenopetrosal vein. INTERVENTION: An operation was performed with the patient in a sitting position, and the tumor was resected totally via the paramedian supracerebellar transtentorial approach without perioperative complications. CONCLUSION: The paramedian supracerebellar transtentorial approach is useful for supratentorially located medial tentorial meningiomas without retraction of the temporal lobe and without damage to the vein of Labbé or the sphenopetrosal vein.
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