This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Urology, Subject name: Surgery
[{'content': 'Stereotactic radiosurgery is done for \nSelect and explain. \nA. Glioblastoma multiforme, B. Medulloblastoma spinal cord, C. Ependymoma, D. AV malformation of brain', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 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', 'role': 'assistant'}]