The way rectal cancer metastasizes is generally manifested in three ways:

Among cancers, rectal cancer is a relatively common type. If it is not treated in time, rectal cancer will metastasize. In fact, the way rectal cancer metastasizes is generally manifested in three ways. The following authoritative experts will explain to you in detail the way rectal cancer metastasizes.

There are several main ways in which rectal cancer metastasizes:

1. Hematogenous metastasis: accounting for 34%, mostly metastases to the liver, followed by the lungs, bones, brain, and ovaries. Very rarely metastases to the adrenal glands or kidneys, which is the way rectal cancer metastasizes.

2. Local spread: First, it spreads within the intestinal wall. It takes about 2 years for the cancer to grow around the intestinal wall. After the cancer infiltrates into the muscular layer, it is easy to metastasize through the blood. The tumor can also invade the entire intestinal wall and even the organs around the intestine (such as the bladder, prostate, uterus, small intestine, liver, stomach, pancreas, etc.). This is the way rectal cancer metastasizes.

3. Lymphatic metastasis: accounting for 60%. Colon cancer cells pass through the intestinal wall through the submucosal lymphatic network → intestinal wall lymph nodes → para-colic lymph nodes → intermediate lymph nodes → central lymph nodes (main lymph nodes) → para-aortic lymph nodes → supraclavicular lymph nodes. This is how rectal cancer metastasizes.

Rectal cancer cells travel along the intestinal wall lymphatic tract → para-intestinal lymph nodes → lymph nodes beside the superior rectal artery or sigmoid artery → lymph nodes beside the inferior mesenteric artery → lymph nodes beside the abdominal aorta → supraclavicular lymph nodes. The lymphatic drainage of the rectum is divided into two groups, the lower group below the dentate line, which flows into the inguinal lymph nodes through the perineum. Since the upper and lower groups of lymphatic networks have extensive anastomosis branches with each other, rectal cancer can also metastasize to the inguinal lymph nodes through the lymphatic tract, which is also the way rectal cancer metastasizes.

The above is the way of rectal cancer metastasis introduced by experts. I hope it can help you. If you still want to know what precautions to take, please consult experts online. They will give you a satisfactory explanation. Thank you for your support and trust in this website.