[Various problems of recurrence in echinococcosis].

Complex experimental and morpho-laboratory examinations of 164 patients and 30 animals have shown the daughter bullas implanted into the liver tissue of animals to perish, the cavity being substituted by the connective tissue. In patients with Echinococcosis with the live parasite, suppuration or calcification scolexes were not found or died. In cases with the dead parasite and the destroyed cuticular membrane scolexes could be found in the fibrous capsule cavity and outside its limits. This fact should be taken into consideration when choosing the operative method.