The TNM cent of larynx cancer expect

If the patient is diagnose to get a larynx cancer, doctor may for the T that the patient analyze a larynx cancer perhaps N cent expect and these are the TNM cent which points cancer to expect.The cent expects the treatment toward the larynx cancer very important, it decision larynx cancer of treatment method, we here in brief introduce a larynx a cancer of the cent expect.
Letter of alphabet T representative the size of the tumor and deliver the scope of the invasion of tumor at first, if the larynx cancer arises from at the vocal cord, the cent is expect as follows:
T1:The tumor limits at one side of larynx.
T2 tumors are located on two sideses of larynx.
T3 tumors have already cause one side vocal cord the obstacle of sport.
T4 tumors have already infringed upon the outside of the larynx.
The N represents lymphoid knot and mean whether have lymphoid knot is infringe upon.Ising divided into 4 classes is N0, N1, N2 and N3 respectively.
NO:Have no proof enunciation to there is lymphoid knot transfer,
N1:There is a suspicious lymphoid knot, the diameter is less than 3 cms to transfer.
N2:All discover in two sides of neck that the lymphoid knot perhaps has two above lymphoid knots in a side, perhaps big in one side diameter at the 3 cms, small in 6 cms.
N3:A lymphoid knot diameter is in the 6 cms above.
Letter of alphabet M means to have already had no transfer of distance, such as the transfer of the lung department and the liver department,
M0:Mean transfered
M1:Mean to have already transfer
The M cent of T N's expecting to knot to put together fors the cent of larynx cancer to expect:
The I expect: T1, N0 and M0.
The II expect: T2, N0 and M0.
The III expect: T3, N0 and M0; T1, T2, perhaps T3, with N1, M0.
The IV expect:T4, N0 perhaps N1, M0; Any T pluses N2 perhaps N3 and M0 and perhaps the M1 plus any T perhaps N
The little tiny time of tumor is a T1, be appear distance to transfer perhaps infringe upon close by structure(but don't include lymphoid knot) for the IV expect.The having already infringed upon to pour a flattering larynx cancer to attain N2 perhaps N3 is also an IV period.