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Dictionary of Cancer Terms

View in Spanish: Cáncer de pulmón de células no pequeñas en estadio II

Stage II non-small cell lung cancer ( sel lung KAN-ser)
Stage II is divided into stages IIA and IIB. In stage IIA, the tumor is 3 centimeters or smaller and cancer has spread to nearby lymph nodes on the same side of the chest as the tumor. In stage IIB, cancer has spread to nearby lymph nodes on the same side of the chest as the tumor and one or more of the following is true: (1) the tumor is larger than 3 centimeters; (2) cancer has spread to the main bronchus of the lung and is 2 centimeters or more from the carina (where the trachea joins the bronchi); (3) cancer has spread to the innermost layer of the membrane that covers the lungs; and/or (4) the tumor partly blocks the bronchus or bronchioles and part of the lung has collapsed or developed pneumonitis (inflammation of the lung). OR in stage IIB, cancer has NOT spread to lymph nodes and one or more of the following is true: (1) the tumor may be any size and cancer has spread to the chest wall, or the diaphragm, or the pleura between the lungs, or membranes surrounding the heart; (2) cancer has spread to the main bronchus of the lung and is no more than 2 centimeters from the carina (where the trachea meets the bronchi), but has not spread to the trachea; and/or (3) cancer blocks the bronchus or bronchioles and the whole lung has collapsed or developed pneumonitis (inflammation of the lung).



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.