Clinical imaging
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Mediastinal bronchopulmonary foregut duplication cysts are usually identified on computed tomography (CT) as well-defined masses of water density that may contain rim calcification. Occasionally they are heterogenous in attenuation or are of intermediate or high attenuation due to contained calcium. ⋯ We report a bronchogenic cyst that communicated with the trachea and was identified by CT as a multilocolor, completely air-filled cyst adjacent to the trachea and esophagus. This appearance of a bronchogenic cyst has received little attention in the literature.