52 cases of acoustic neurinoma operated onduring the years 1973-1974 are reported. The results of operation performed under either general anesthesia or acupuncture anesthesia with 3 different approaches are analyzed and compared. The lateral suboccipital approach with acupuncture anesthesia is considered to be the method of choice for removal of this tumor. The technics for the 3 approaches are des-cribed in detail with illustrations. Since 1973, we have used both general anesthesia and acupuncture anesthesia with 3 different operative approaches for the removal of acoustic neurinoma. A com-parison of the results of 325 cases operatedon under general anesthesia from 1958 to 1972 and 52 cases operated on under general or acupuncture anesthesia from 1973 to 1974 revealed a striking difference in results. Although the complete extirpation rate of the 2 groups was about the same, being 60 and 65.4% respectively, the operative mor-tality rate was 13.2% in the former group and 5.8% in the latter and the corresponding figures for facial nerve preservation was less than 5% and 36.5%.