Figure 12 | Scientific Reports

Figure 12

From: Treatment Strategy for Petroclival Meningiomas Based on a Proposed Classification in a Study of 168 Cases

Figure 12

Intraoperative figures demonstrating steps of sphenopetroclival subtype II resection via the EPTA. (a) Exposure of the second interval and the third interval after temporal lobe retraction via regular pterional approach. (b) Tumor resection of the part of middle fossa. (c) Tumor resection of the part of posterior fossa. (d) Total tumor resection to protect the CN III and keeping well the brain stem and neurovascular structures integrity. (e–h) The corresponding illustrations of main steps of the EPTA. PCF, Posterior Cranial Fossa; PCP, Posterior Clinoid Process; Tu, Tumor; BS, Brainstem; BA, Basilar Artery.

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