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“Retrosigmoid approach for resection of petroclival meningioma“ Anil Nanda MD, MPH, and Sudheer Ambekar MBBS, MCh Louisiana State University, Department of Neurosurgery, Shreveport, Louisiana This video describes the classic retrosigmoid approach for the resection of petroclival lesions. In this procedure, a careful dissection of the tumor within the arachnoid plane from the neurovascular structures is described. The key steps in the procedure are outlined, and include positioning, tumor de
