Liver echinococcosis is a serious problem for countries with endemic foci of this parasitic disease. The recurrence rate after surgery reaches 22,3-31,3%. One of the debatable issues in surgical treatment of liver echinococcosis is a choice of techniques in relation to fibrous capsule of a cyst [3, 8, 10-12].

The aim of the work is to study the results of ultrasonic antiparasitic treatment of residual cavity of liver after echinococcectomy with simultaneous hepatoprotection of liver parenchyma.