How can a pneumothorax occur at the apex of the lung after wedge resection? Chest tube still in place since 1/15/15.

Not healed. The pneumothorax refers to air within your pulmonary cavity, external to your lung. This occurs during surgery when the pulmonary cavity was opened up to resect a part of your lung. The chest tube under suction is an attempt to drain this air and fluid until everything is healed. It just suggests things are not completely healed yet. At some point, there are other options for intervention .