Healthcommunities.

Staging is a method of assessing the progress of cancer in a patient. That is, he looks at the tumor and the extent to which it has spread to other parts of the body. Once doctors know how far levaquin 750 mg iv piggyback the cancer, they can choose the best course of treatment. Staging of colon cancer is relatively simple. Initially, there was a system of classification of the Dukes, who placed the patients in one of three categories (stages A, B, C). This system was subsequently modified Astler-Coller to include the fourth stage (stage D); Gunderson Sosin later changed it again in 1978. More recently, the American Joint Committee on Cancer (AJCC) TNM staging system was introduced, which places patients into one of four stages (stage I-IV). Below are the princes and the staging system TNM (they are most often used). TNM (tumor, Node, Metastasis) Staging System for Colorectal Cancer

tumor T1: tumor invades submucosa. T2: tumor invades the muscle itself. T3: tumor invades through the muscle itself in the subserosa, or

next to the colon or perirectal tissues. T4: Tumor directly invades other organs or structures and / or perforates. Nodes N0: No regional lymph node metastases. N1: Metastasis from 1 to 3 regional lymph nodes. N2: Metastasis in 4 or more regional lymph nodes. Metastases M0: no distant metastasis. M1: Distant metastasis present. Stage I: T1 N0 M0; T2 N0 M0

cancer began to spread, but is still in the cuticle. Stage II: T3 N0 M0; T4 N0 M0

The cancer has spread to other organs near the colon or rectum. He has not reached the lymph nodes. Stage III: any T, N1-2, M0

cancer spread to lymph nodes, but it was not communicated to distant parts of the body. Stage IV: any T, any N, M1

cancer was carried out through the lymphatic system to distant parts of the body. This is called metastasis. Most likely, the authorities in order to experience metastasis of colorectal cancer of the lungs and liver. 1998-2010 HealthCommunities. com, Inc All rights reserved.