Colon cancer is defined by any top oncologist in Kolkata as cancer that occurs in the last part of the colon, and that is exactly what it is. Colorectal cancer is defined as cancer that affects both the colon and the rectum. The emergence of polyps, which are small benign collections of cells inside the colon, initiates the development of colon cancer.

top oncologist in Kolkata


How is Colon Cancer Staged

One of the first things your doctor will want to know if you've been diagnosed with colon cancer is the stage of your malignancy.

The cancer's stage refers to how far it has progressed and how far it has spread. Colon cancer must be staged in order to establish the optimal treatment strategy.

The TNM staging system is commonly used to classify colon cancer, where T is the primary tumour size, N refers to regional lymph nodes, and M stands for distant metastases.

Different Stages and Their Treatment

Stage I

Stage I cancers have spread to the second and third layers of the colon or rectum, as well as the interior wall. According to the best cancer doctor, the cancer hasn't spread to the bowel's outer wall or beyond it.

Most people will have surgery at this point to remove the malignancy and a small amount of surrounding tissue.

Stage II

Colorectal cancers in stage II are bigger and penetrate the bowel's muscular wall. They could have spread to other parts of the body, such as the bladder, uterus, or prostate gland. However, no malignancy has been found in distant organs or lymph nodes.

You'll certainly need surgery to remove the cancer and any surrounding areas, as well as any areas where it has progressed.

Stage III

Colorectal cancers in stage III have progressed to one or more lymph nodes.

Your colon cancer doctor in Kolkata may discuss tumours in stages III A, B, or C with you. This is what it means:

IIIA: Tumours affect the lymph nodes and are found in the colon or rectum wall.

IIIB: Tumours have spread to one to four lymph nodes after breaking through the wall.

IIIC: Tumours have progressed to more than four lymph nodes.

Treatment of stage III colorectal cancer usually involves surgery for the removal of the tumour and the affected lymph nodes. Radiation therapy is very rarely needed.

Stage IV

Colorectal cancers at stage IV have migrated to other areas of the body, most commonly the liver or lungs. The cancer may have “metastasized,” according to your doctor.

The tumour may or may not encompass your lymph nodes, and it can be of any size.

You may require surgery to remove the cancer from your colon and other areas where it has spread. Alternatively, you could have surgical treatment of colon cancer to bypass the cancer and reconnect the healthy portions of your colon.