Abstract
Here we report a case of right middle lobe torsion following a right upper lobectomy for adenocarcinoma of the right lung. Diagnosis was achieved with serial chest x-rays, CT of thorax and rigid bronchoscopy. Re-thoracotomy and middle lobectomy was performed at third postoperative day. Because lobar torsion is one of the complications following lung resection and often results in gangrene, therefore maintaining a high level of suspicion is the most important factor for the diagnosis.