Sir My brother has operated for brain tumor in left frontal lobs in june 2014. After that operation doctor said he has cancer-anaplastic astrocytoma stage-3. He has take one month radiation with chemo 120 gm and 130 mg chemo. After radiation he has take 3 month chemo 250 mg and 350 mg alternative. But after One year now doctor saying that MRI showing a small ring in post operated area. It may be disease- mean again growing cancer cell. So please suggest what we can do this time. Is there is need of radiation again. Please suggest .