[Radiologic manifestation of bronchogenic cyst]

A review of five cases of surgically proven bronchogenic cysts was undertaken. One case was mediastinal bronchogenic cyst and other four cases were pulmonary bronchogenic cysts. Pulmonary bronchogenic cysts varied in roentgenologic features. They presented as cyst with air-fluid level, air-filled cyst, sharply delineated spherical, oval or lobulated mass shadow. Pulmonary bronchogenic cysts with homogeneous water-density shadow were not necessarily easy to be differentiated from malignant pulmonary neoplasm.