Hallo! my brother was operated on to remove grade 11 tumor last year, then went through several sessions of raiotherapy. lately started experiensing severe convulsions every 2 weeks, the last one was Fri last week where he had three in hourly intervals despite being on antiseizure drugs. MRS showing gliotic lesions.What does this mean?
Hi, welcome to Chat Doctor.  Main cause for convulsion is idiotic area in brain. It means area which is damaged due to old pathology, and it is now being shrunken in size. It leaves multiple signals to brain cells, which are not coordinated. Furthermore, it causes seizures. Furthermore, it may be due to radiotherapy.  Also, if there is residual tumor left then it may also cause convulsions. You need to consult operating surgeons and take proper advise for the same.  Thanking you.