This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Surgery
Stereotactic radiosurgery is done for: 
Select and explain. 
A. Glioblastoma multiforme, B. Medulloblastoma spinal cord, C. Ependymoma, D. AV malformation of brain
D: AV malformation of brain
Answer: D: AV malformation of brain 
Explanation: Ans. (d) AV malformation of brainRef: Sabiston 19/e p 1900-1902* Stereotactic Surgery involves delivery of concentrated dose of RT to a defined volume of brain using Gamma knife or modified linear accelerator* Used in# Metastatic tumors# AV malformations# Benign Cranial nerve lesions# Trigeminal neuralgia