Endobronchial ultrasound: a useful tool in the diagnosis of bronchogenic cyst.

Diagnosis of bronchogenic cysts is possible with computed tomography, where the cysts are seen usually as well-circumscribed lesions of water density. However, many of the cysts have a soft-tissue density thus rendering them indistinguishable from neoplasms. In this article, we describe a case of bronchogenic cyst presenting as soft-tissue mass that was evaluated and diagnosed by endobronchial ultrasound (EBUS). We discuss the ultrasound image characteristics of the cyst and its histopathology findings. EBUS seems to be a valuable tool in the diagnosis of bronchogenic cysts and also enables their complete aspiration.