If the tumor is large, a doctor may cut out a section of the small intestine containing the cancer and reconnect the intestine. Chemotherapy uses drugs to kill cancer cells. Chemotherapy may be taken by pill, or it may be put in the body through a needle in a vein or muscle. Chemotherapy is called a systemic treatment because the drug enters the bloodstream, travels through the body, and can kill cancer cells outside the intestine. If the doctor removes all the cancer that can be seen at the time of the operation, the patient may be given chemotherapy after surgery to kill any cancer cells that are left.
Chemotherapy given after an operation is called adjuvant chemotherapy.
Biological therapy tries to get the body to fight cancer. It uses materials made by the body or made in a laboratory to boost, direct, or restore the body's natural defenses against disease. Treatment by stage Treatments for cancer of the small intestine depend on the type of cancer, how far it has spread, and the patient's general health and age. Standard treatment may be considered because of its effectiveness in patients in past studies, or participation in a clinical trial may be considered. Not all patients are cured with standard therapy and some standard treatments may have more side effects than are desired.