Fig. 2From: Concurrent bronchopulmonary foregut malformations: a rare case of right-sided extralobar pulmonary sequestration and bronchogenic cystGray-scale sonographic images of the upper mediastinum in the same patient show a large anechoic cystic structure (arrow) with no internal flow on color Doppler (not shown) (a). Approximately 12 ml of clear mucinous fluid was aspirated from the lesion (b)Back to article page