What is TNM classification for tumors?
A system to describe the amount and spread of cancer in a patient’s body, using TNM. T describes the size of the tumor and any spread of cancer into nearby tissue; N describes spread of cancer to nearby lymph nodes; and M describes metastasis (spread of cancer to other parts of the body).
How do you write TNM staging?
In the TNM system, the overall stage is determined after the cancer is assigned a letter or number to describe the tumor (T), node (N), and metastasis (M) categories. T describes the original (primary) tumor. N tells whether the cancer has spread to the nearby lymph nodes.
What does Y mean in tumor staging?
y: clinical (yc) or pathological (yp) data following systemic or radiation therapy be it prior to surgery or as a primary treatment. r: clinical or pathological staging at the time of retreatment or recurrence for disease progression.
What does T3 N0 M0 mean?
N0. M0. The cancer has grown into the outermost layers of the colon or rectum but has not gone through them (T3). It has not reached nearby organs. It has not spread to nearby lymph nodes (N0) or to distant sites (M0).
What does T2 mean in TNM staging?
T2 indicates an invasion of the muscularis propria, and T3 is an invasion into the subserosa. Tis identifies carcinoma in situ. Tx is used when the tumor is unable to be assessed.
What does T3N1M0 mean?
TNM system For example your diagnosis may be ‘T3N1M0’. This means the cancer has grown into the outer lining of the bowel to up to three nearby lymph nodes, but has not spread to other parts of the body. You will sometimes see the TNM staging report written with a lower case letter in front of it.
What does T3 N1 M0 mean?
What does T2 N1 M0 mean?
M refers to whether the cancer has spread to another part of the body – it can either be 0 (the cancer hasn’t spread) or 1 (the cancer has spread) So for example a small cancer that has spread to the lymph nodes but not to anywhere else in the body may be T2 N1 M0.
What does T3 N2 M0 mean?
T3 or T4a. N2b. M0. The cancer has grown into the outermost layers of the colon or rectum (T3) or through the visceral peritoneum (T4a) but has not reached nearby organs. It has spread to 7 or more nearby lymph nodes (N2b).