COT-01 SYMPTOMATIC EPILEPSY INDUCED BY MALIGNANT BRAIN TUMOR

CASES: We report about 41 cases of malignant brain tumor which were treated with operation, irradiation, chemotherapy during past 62 months. 34 cases of glioblastoma, 2 cases of malignant glioma(WHO grade III), 2 cases of medulloblastoma, 1 case of germ cell tumor, 1 case of malignant neurocytoma, and 1 case of malignant ependymoma were included in 41 cases. Two cases of glioblastoma survived over than 25 years, but the median survival of dead 11 glioblastoma cases was 22 months. 4 cases were expired among another 7 cases. RESULTS: 6 cases showed mutation in ATRX and one case had mutation of IDH-1 among 34 cases of glioblastoma. One case showed mutation in ATRX and IDH-1 among 2 cases of malignant glioma. But the mutation in ATRX and IDH-1 had no correlation with convulsion. The initial symptom was epilepsy in 3 cases of glioblastoma and another 3 cases of glioblastoma showed convulsive seizure thereafter. One case of glioblastoma showed rapid aggravation of symptom after convulsion. The initial symptom was epilepsy in 1 case of malignant glioma. One case of malignant ependymoma and one case of medulloblastoma showed rapid aggravation of symptom after convulsion. DISCUSSION: Nine cases showed convulsion among our 41 cases. Convulsion happened as initial symptom in 4 cases but it happened during treatment in 5 cases. Three cases among these 5 cases showed rapid aggravation of symptom after convulsion. So pre- and post-operative anti-epileptic treatment seems to be necessary.