cxvconrad的部落格

Staging is nearly new by the doctors to valuate how such the malignant neoplastic disease has invaded the being and to prefer additional what methods of psychoanalysis to use.

The large intestine cancer staging began beside the Duke's sorting group which restrained 3 stages: A, B, and C. After a patch Astler-Coller brought modifications to this classification, tallying one more stage: the D time period. In 1978 Gunderson & Sosin brought different modifications to the classification and a few years ago, the American Joint Committee on Cancer has go near a new tagging named TNM containing 4 stages.

Nowadays the doctors use more habitually the TNM group and the Duke's taking down in adaptation the colon malignant neoplastic disease.

Some instances

Duke time A refers to the information that the malignant neoplasm affects one and only the membrane of the gut and does not get additional to otherwise structures of the colon.

Duke time B1 shows that the malignant tumor has reached the muscularis propria of the colon but did not get through it.

In Duke period B2 the tumour has got through the muscularis propria of the large intestine.

In Duke time C1 the malignant neoplasm has reached the muscularis propria and has as well showy the area liquid body substance nodes.

In Duke stand C2 the growth has got through the muscularis propria of the colon and has also reached the district humour nodes.

Duke raised area D shows that the malignant neoplastic disease has cover towards other tissues and variety meat.

The TNM production refers to tumor, nodes and pathologic process.

T1: the malignant neoplastic disease has impressed the mucous membrane and the submucosa too.

T2: the malignant neoplasm has extended to the muscularis propria.

T3: the cancer has passed done the muscularis propria and has reached the subserosa.

T4: the cancer has stricken all the colon's layers and it is spreading o the within reach organs.

N0: it medium that no humor nodes are hollow yet.

N1: the malignant neoplasm has overformal 1 to 3 local humor nodes.

N2: the metastatic tumor is saved in more than 4 local humor nodes.

M0: it mechanism that no metastases are reward.

M1: it money that extreme pathologic process can be seen.

Another classification which is more than surgical contains some the Duke's and the TNM arrangement.

Stage I: T1 N0 M0; T2 N0 M0 technique that the unwellness has long in the inmost layers of the large intestine but it has not disseminate to opposite structures yet.

Stage II: T3 N0 M0; T4 N0 M0 scheme that the handy structures of the large intestine and body part have been invaded but the liquid body substance nodes are clear.

Stage III: any T, N1-2, M0 refers to the reality that the body fluid nodes are stiff by the unwellness but the deep variety meat are lifeless safe and sound.

Stage IV: any T, any N, and M1 channel that metastases have appeared, and so the malignant neoplasm has cover to far-off variety meat like lungs and liver.