Symptoms of colorectal cancer spread?

summary

For this kind of disease of rectal cancer, if it is not treated in time, it is likely to cause other complications, which will bring great harm to our lives. This will increase the difficulty of treatment of patients. The most common is the spread of rectal cancer. So, what are the symptoms of colorectal cancer spread? Let's talk about it.

Symptoms of colorectal cancer spread?

1. The infiltration of rectal cancer along the longitudinal axis of the bowel is slow and the infiltration distance is small, rarely more than 2-3cm from the edge of the tumor. However, the infiltration along the transverse direction is faster than that along the longitudinal direction. About half a year, it can reach 1 / 4 of the week of intestinal invasion. It takes about a year and a half to two years to infiltrate one week. Compared with other digestive tract tumors, the infiltration speed is relatively slow. Rectal tumor can also spread to adjacent tissues and organs after reaching full thickness, and can also be fixed with surrounding tissues.

2. For the convenience of description of lymphatic metastasis, we divided the lymphatic drainage above the dentate line of rectum into upper, middle and lower groups. Up to the abdominal aortic lymph nodes, the retrorectal lymph nodes or presacral lymph nodes pass through the parailiac lymph nodes or the mesenteric root lymph nodes. In the middle group, they spread to the medial side of the pelvic diaphragm, through the lymph nodes in the lateral ligament to the internal iliac lymph nodes, and then ascended. In the lower group, through the pelvic diaphragm, through the ischiorectal fossa lymph nodes, up to the iliac lymph nodes, down through the sphincter, anal skin to the inguinal lymph nodes. Generally, most of the rectal lymphatic drainage which is more than 8 cm away from the anal margin moves upward and middle, but when the lymphatic vessels are obstructed by cancer cells, they can also be drained downward. Most of the rectal lymphatic drainage below 8 cm from the anal margin is downward, so the resection of this rectal cancer should be carried out together with the removal of the anus and its surrounding fat. The lymph node metastasis of rectal cancer is more than that of colon cancer, and the lower the probability is higher.

3. Organ metastasis: liver is the main distant metastasis of colon cancer, about 50% of patients will have liver metastasis before or after operation. The data also showed that about 30% of the patients had occult liver metastasis which could not be detected by B-ultrasound or CT before operation. Resection of liver metastases from colorectal cancer is safe and may improve the long-term survival rate of patients with metastases. However, only a small part (10% - 20%) is suitable for surgical resection, and 70% of them recur after operation. This is also a common form of colon cancer metastasis.

matters needing attention

Colon cancer patients should pay attention to eat more fresh vegetables, such as bamboo shoots, garlic, eggplant, black fungus, luffa and carrots. They can also eat more fruits, such as strawberries, apples, pears and bananas. These foods are rich in vitamins, which are good for the health of patients. Family members should advise patients and chat with them, Transfer their thoughts and try to make them feel better.