[The evaluation of preoperative and postoperative frontal lobe functions in three operative cases of meningioma]

We report three cases of frontal meningioma with their pre- and post-operative evaluations of higher brain functions, especially of frontal lobe functions. All of the cases showed the improvement of the frontal lobe functions after the tumor removal. The evaluations of frontal lobe functions in benign brain tumors such as a meningioma are reported only in a few cases. The evaluations of frontal lobe functions in the operative cases of benign brain tumors provide many interesting and valuable informations about frontal lobe functions. So we must be more interest in evaluations in higher brain functions and accumulate cases for the further analysis of higher brain functions.