Two-panel drawing of stage IIB non-small cell lung cancer. First panel shows cancer (more than 5 cm but not more than 7 cm), and cancer in the right main bronchus and lymph nodes; also shown are the trachea, bronchioles, and diaphragm. Inset shows cancer that has spread from the lung to the innermost layer of the lung lining; a rib is also shown. Second panel shows cancer (more than 7 cm), and cancer in the left main bronchus; also shown are the trachea, lymph nodes, bronchioles, and diaphragm. 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 IIB non-small cell lung cancer. Cancer has spread to certain lymph nodes on the same side of the chest as the primary tumor; the cancer is (a) larger than 5 cm but not larger than 7 cm, (b) has spread to the main bronchus, and/or (c) has spread to the innermost layer of the lung lining. Part of the lung may have collapsed or become inflamed (not shown). OR, (d) the cancer is larger than 7 cm; (e) has spread to the main bronchus, (f) the diaphragm, (g) the chest wall or the lining of the chest wall; and/or (h) has spread to the membrane around the heart. 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; the whole lung may have collapsed or become inflamed (not shown).