Giant pulmonary sequestration: the rare case requiring the EXIT procedure with resection and ECMO.

Although most prenatally diagnosed pulmonary sequestrations (PS) are asymptomatic, large lesions are associated with pleural effusions and pulmonary hypoplasia. We present the first reported case of a prenatally diagnosed giant extralobar pulmonary sequestration that required the ex utero intrapartum treatment (EXIT) procedure with resection and extracorporeal membrane oxygenation (ECMO). We discuss the compelling rationale for performing EXIT-resection-ECMO in the setting of a large thoracic mass and anticipated severe respiratory failure at birth.