Bronchogenic cyst appearing as a hepatic mass

Because bronchogenic cysts may be found in or near any organ derived from t he embryonic foregut, they sometimes pose considerable diagnostic difficult ies. We describe the plain chest X-ray, computed tomographic, and angiograp hic findings in a patient with elevated CA 19-9 and upper quadrant abdomina l pain due to a cystic tumor appearing as a hepatic mass. Surgery and histo logy showed a bronchogenic cyst located in the lower lobe of the right lung .