Stage IIIA non-small cell lung cancer (1). Drawing shows cancer in lymph nodes, left main bronchus, and diaphragm; there may be separate tumors in the same lung; the trachea is also shown. Top inset shows cancer that has spread from the lung through the lung lining and chest wall lining into the chest wall; a rib is also shown. Bottom inset shows the heart and cancer that has spread from the lung into the membrane around the heart.