<prompt> Stereotactic radiosurgery is done forGlioblastoma multiformeMedulloblastoma spinal cordEpendymomaAV malformation of brain  <response>: Stereotactic Radiosurgery SRS is a non-surgical radiation therapy used to treat functional abnormalities small tumors of brain Deliver precisely - targeted concentrated dose of radiation in fewer high-dose treatments to a defined volume in the brain When SRS is used to treat body tumors, its called stereotactic body radiotherapy SRBT Primary risks of stereotactic radiosurgery are radiation necrosis radiation injury to surrounding structures Common uses of Stereotactic Radiosurgery SRS Brain tumor Benign, malignant, primary metastatic Tumors, single multiple Beingn lesions of the cranial nerves Aeriovenous malformation Trigeminal neuralgia SRBT is currently used and or being investigated for use in treating malignant or benign small-to-medium size tumors of lung, liver, abdomen, spine, prostate, head and neck Ref: Sabiston 20th edition Pgno : 1923 