11C-Methionine positron emission tomography for preoperative evaluation of suggestive low-grade gliomas.

Objective: The treatment regimen for cerebral gliomas is different, depending on the histological grade of the lesion. The therapeutic strategy for anaplastic gliomas and glioblastomas is more aggressive, including microsurgical removal, radiation and chemotherapy. The management for low-grade gliomas is still under discussion, operation or "wait and see" tactics are possible options.