What does N2 mean in lung cancer?
N2. N2 means there is cancer in lymph nodes: in the centre of the chest (mediastinum) on the same side as the affected lung or. just under where the windpipe branches off to each lung.
What is N2 in cancer staging?
N1: The cancer has spread to 1 or more lymph nodes on the same side as the primary tumor, and the cancer found in the node is 6 cm or smaller. N2: Cancer has spread to 1 or more lymph nodes on either side of the body, and none is larger than 6 cm. N3: The cancer is found in a lymph node and is larger than 6 cm.
What does T4 N0 M0 mean?
Number staging system Stage 2 – The cancer has grown through the muscle wall or through the outer layer of the bowel and may be growing into tissues nearby. The cancer has not spread to the lymph nodes or elsewhere (T3 N0 M0 or T4 N0 M0).
What does N1 mean in terms of lung cancer?
N1 means there are cancer cells in lymph nodes within the lung or in lymph nodes in the area where the lungs join the airway (the hilum). Metastasis (M) describes whether the cancer has spread to a different part of the body. There are 2 stages of metastasis – M0 and M1.
What does T2 and T4A mean for mouth cancer?
T2 can mean different things. The cancer is 2cm or smaller, and it is deeper than 5mm but no deeper than 10mm. Or the cancer is larger than 2cm, but no larger than 4cm, and it is 10mm deep or less. T4a means the cancer has grown further than the mouth and into surrounding structures such as bone, skin or the facial air cavities (sinuses).
What’s the difference between T1 and T4 lung cancer?
There are 4 categories – T1 to T4. TX means the main cancer (primary) can’t be assessed. It doesn’t show on scans but there might be cancer cells present in spit or in fluid taken from the lung. T0 means there is no sign of cancer. Tis means an area of cancer cells contained within the inner lining of the lungs.
What does the t stand for in cancer stage?
Using the TNM system, the “T” plus a letter or number (0 to 4) is used to describe the size and location of the tumor. Stage may also be divided into smaller groups that help describe the tumor in even more detail. Specific tumor stage information is listed below. TX: The primary tumor cannot be evaluated.