[Manifestation of echinococcosis in the chest cavity]

In the interim from 1970 to 1974, the authors had occasion to encounter several patients with symptoms of hydatid disease in the chest, particularly with pleural effusion not always easily differentiated from effusions other etiology. This pertains especially to hydatid disease of the liver with a perforation through the diaphragm and clinic and roentgen findings revealing only thoracic signs. All the clinical diagnosis in cases of patients who had undergone an operation, were confirmed by patho-anatomic findings.