Rectal Cancer Surgery: An Overview
Surgery (removing the cancer in an operation) is the most common
rectal cancer treatment for all stages of the disease. The extent of
rectal cancer surgery will depend on the location and size of the tumor, the stage of the cancer, and on the patient's general health.
Rectal Cancer Surgery: Tumor Removal
A doctor may remove the cancer using one of the following types of surgery:
- Local excision
- Resection
- Resection and colostomy.
Local Excision Surgery
If the rectal cancer is found at a very early stage, the doctor may remove it without cutting into the abdomen. If the cancer is found in a polyp (a growth that protrudes from the rectal mucous membrane), the operation is called a polypectomy.
Resection Surgery
If the cancer is larger, the doctor will perform a resection of the rectum (removing the cancer and a small amount of healthy tissue around it). The doctor will then perform an anastomosis (sewing the healthy parts of the rectum together, sewing the remaining rectum to the
colon, or sewing the colon to the anus). The lymph nodes near the rectum will also be removed and examined under a microscope to see if they contain cancer.