Belarusian National Science and Practice Oncology center got a new unique device. The gamma-knife can neutralize an encephaloma with punctual radiation. The sound tissues remain intact. There are only about 3 thousand such devices in the whole world. Russia has only 4 of them. Belarus has the latest model. The operation is held under local anesthesia, from 40 minutes to 4 hours, depending on the complicasy of the case.