Lung Abscess Due to Retained Gallstones With an Adenocarcinoma

We describe a patient who had a right lower lobe mass containing calcifications consistent with gallstones develop 31/2 years after laparoscopic cholecystectomy. Thoracotomy revealed a chronic abscess containing pigmented gallstones and an adjacent area of bronchoalveolar adenocarcinoma involving both N1 and N2 lymph nodes.