1. They're parasitic cysts from a bug called echinococcus.

2. 26 Hydatid disease is a worldwide zoonosis produced by the larval stage of the Echinococcus tapeworm.

3. In addition, the nematodesGongylonema pulchrum, Hyostrongylus rubidus, Gnathostoma hispidum, Oesophagostomum sp., andTrichinella sp., the acanthocephalan speciesMacracanthorhynchus hirudinaceus, the intestinal flukeEchinochasmus perfoliatus (Trematoda) and the larval stage (Cysticercus tenuicollis, Echinococcus hidatidosus) of two tapeworm species (Taenia hydatigena, Echinococcus granulosus) (Cestoda) were recorded.

4. Cestoda, class Cestoda - tapeworms echinococcus - tapeworms whose larvae are parasitic in humans and domestic animals taenia - tapeworms parasitic in humans which uses the pig as its intermediate host

5. Report concerning an en-bloc-resection of right lower lobe of the lung, diaphragm, right lobe of the liver, right adrenal gland, parts of the chestwall and a fistula for alveolar echinococcus.