[Our experience with rare primary localizations of hydatidosis. Analysis of etiopathogenetic aspects]

The authors relate their experience on seventeen cases of unusual localizations of Echinococcus cyst operated in the last fifteen years. They present a critical analysis of the different pathogenetic theories trying to explain the peripheral localization of the larva. It is made examination of the factors which would consent the passing through of the hepatic and pulmonary filter, the mechanisms that could avoid such filters and the hypothesis referring to the possibility of direct setting up. They dwell quickly on the peculiar pathogenetic aspects of the various observed localizations.