Cancer Information

stage IIA non-small cell lung cancer

(... sel lung KAN-ser)

Stage II non-small cell lung cancer is divided into stages IIA and IIB. In stage IIA, cancer has spread to lymph nodes on the same side of the chest as the tumor. Also, one or more of the following is true: (1) the tumor is not larger than 5 centimeters; (2) cancer has spread to the main bronchus and is at least 2 centimeters below where the trachea joins the bronchus; (3) cancer has spread to the innermost layer of the membrane that covers the lung; and/or (4) part of the lung has collapsed or become inflamed. OR in stage IIA, cancer has not spread to lymph nodes and one or more of the following is true: (1) the tumor is larger than 5 centimeters but not larger than 7 centimeters; (2) cancer has spread to the main bronchus and is at least 2 centimeters below where the trachea joins the bronchus; (3) cancer has spread to the innermost layer of the membrane that covers the lung; and/or (4) part of the lung has collapsed or become inflamed.