What Are The Stages Of Lung Cancer? Submitted By: Gray Rollins Once a diagnosis of lung cancer has been made, the doctor will attempt to determine the stage the lung cancer is at. The staging system is somewhat like a measurement system, with the numbers indicating: whether the cancerous tumors are localized or whether the tumors have spread to other parts of the body; the tumor’s size;

whether or not the tumors have spread to the lymph nodes. There are four main stages of lung cancer (Stages 1 – 4) and identification of one of the stages is what helps doctors prescribe an appropriate treatment method.Different Cancer, Different Stages of Lung Cancer The staging system is a bit more complicated than simply assigning a number. First of all, the stage numbering system differs slightly depending on whether the lung cancer has been diagnosed as small cell lung cancer or non-small cell lung cancer.

Non-Small Cell Lung Cancer Non-small cell lung cancer is the more common form and it progresses more slowly than the other type. Non-small lung cancer can be broken down into 4 stages. Stage 1 means that the tumor is local; it has not spread to the lymph nodes. Adding the letter A or B to the stage 1 classification indicates the size of the tumor (“A” means it is less than 3 cm across)

whether it’s larger and growing in a sensitive area (“B”). Stage 2 means the tumor has spread into lymph nodes or the chest wall. Again, an “A” and “B” designation determines the size and the location of the tumor. Stage 3 is more complicated and can mean several things. For example, it can indicate that the tumor has spread, but it’s still only affecting one side of the lung, or that tumors have spread to other nearby body parts such as the chest wall, or that fluid is collecting in the lungs.