Simultaneous Removal of Right Lung Hydatid Cyst and Repair of Atrial Septal Defect in a Single Session.

Hydatid cyst is the larval stage of echinococcosis caused by the canine tapeworm Echinococcus species, and the lung is the most common site of occurrence. Atrial septal defect is a common congenital heart disease with an incidence of 100 per 100,000 live births. To our knowledge, we report for the first time a case of coexistence of right lung hydatid cyst and atrial septal defect that were both treated with one-stage surgery.