My son-in-law was diagnosed with grade III oligodendroglioma (tumor the size of an egg) in his frontal lobe almost 5 years ago. Tumor was resected... followed up by radiation and chemotherapy (Temodar.) Until January of this year MRIs showed no growth. Now he has a tumor in the basal ganglia area that started as 3 mm and has grown (in 4 months) to 14 mm. We are trying to read between the lines of medical terminology and figure out what all this means...