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.
Stage IIIA non-small cell lung cancer (1). Cancer has spread to certain lymph nodes on the same side of the chest as the primary tumor. The cancer may have spread to (a) the main bronchus; (b) lung lining, chest wall lining, or chest wall; (c) diaphragm; and/or (d) membrane around the heart; and/or (e) there may be one or more separate tumors in the same lobe of the lung. Cancer may have spread to the nerve that controls the diaphragm, and part or all of the lung may have collapsed or become inflamed (not shown).