Gliomas can cause varying degrees of hemiparesis when located in motor areas. The assessment depends on the characteristics of the glioma and the extent of its impact.
If the glioma is located in the motor area, i.e. the precentral gyrus, due to the rapid growth of the glioma and the obvious edema around the tumor, it will compress or destroy the pyramidal cells and the fibers emanating from the motor area, resulting in varying degrees of motor dysfunction or even hemiparesis in the limb opposite to the glioma.
Surgery is the preferred treatment for glioma, and neurosurgery is recommended. For gliomas located in the motor area, intraoperative neurophysiological monitoring is required to remove the glioma and make the patient’s preoperative hemiparesis as good as possible, so that the patient’s hemiparesis will not be aggravated or recovered as much as possible.