The series of acoustic neurinoma cases treated with LINAC are limited compared to GK. Friedman et al. treated 390 patients. Actuarial control rates at 1 and 2 years were both 98% and 5% at 90%. Only 4 patients (1%) required surgery for tumor growth. Seventeen patients (4.4%) experienced facial paresis and 14 patients (3.6%) reported facial hypoesthesia. The risk of these complications is directly related to tumor volume and / or the prescribed dose at the periphery of the tumor. Since the doses were reduced to 1250 cGy in 1994, only 2 patients (0.7%) had facial paresis and another 2 (0.7%) facial numbness. The safety and efficacy of ER as an alternative to microsurgery in acoustic neurinoma is emphasized.