Bronchogenic cyst appearing as a hepatic mass

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