Intrathoracic extrapulmonary hydatid cysts.

Hydatid disease caused by echinococcus granulosus is still a serious problem in both underdeveloped and developing countries. Clinical signs of the disease are not specific. Most patients have a few symptoms when a hydatid cyst is discovered. Symptoms depend on its location, size and complications. Parasite can settle in every organ and tissue in the human body. We report two cases with intrathoracic extrapulmonary hydatid cyst with multiple cysts. Pathophysiology of the mode of dissemination, and surgery are discussed.