Stereotactic multiple arc radiotherapy. V: Primary treatment of discrete low grade glioma

Two, discrete and spherical low grade gliomas, both demonstrating homogenous signal characteristics on MRI, were treated by radical radiosurgery. Both demonstrated the central low intensity signal alterations that are now well-described as occurring after radiosurgery of cranial neuroma. Growth arrest occurred in both cases by 2 years, followed by slow shrinkage in case 2 with the longer follow-up. Both patients are well at 2 and 5 years after treatment. These observations are discussed with regard to the role of radiosurgery in glioma therapy.