How I do it: surgical resection of ventrolateral pontomesencephalic junction glioma via oculomotor-tentorial triangle.

Background: The surgical resection of the pontomesencephalic junction (PMJ) glioma is difficult because the access is challenging due to nearby complicated neurovascular structures. Method: We report a left ventrolateral PMJ glioma successfully resected via the oculomotor-tentorial triangle (OTT), with improved right extremity weakness postoperatively while preserving the pyramidal tract, which resided laterally and posteriorly to the lesion. Conclusion: This case demonstrates the value of the OTT in brainstem surgery. [ABSTRACT FROM AUTHOR]