[Combination treatment for pilocytic astrocytoma: stereotaxic radiosurgery and endocavitary radiotherapy].

摘要: The treatment of a pilocytic astrocytoma located in functional area can be performed using radiosurgery. We report 7 year old male, right-handed, who presented with the left parieto-occipital lobe. After follow-up, tumor became symptomatic (partial and generalized seizures). CT scan nuclear magnetic resonance imaging revealed an increased size mural development cystic component. Multi-beam irradiation (dose 30 Gy at center 21 on isodose 70%) was LINAC for radiosurgery coupling modified Saturne 18 MeV linear accelerator Talairach stereotactic frame. Following multi-beam irradiation, increase cyst imposed further intracavitary radiation Rhenium 186 (186Re) to deliver 400 wall. period intense cerebral edema, resolutive steroid treatment, we obtained progressive disappearance nodule retraction. A PET scan, 3 years after this no metabolic activity persistent nodule. patient remains totally asymptomatic.