Skip to content

Cancer Health Center

Font Size

Small Intestine Cancer Treatment (PDQ®): Treatment - Patient Information [NCI] - General Information About Small Intestine Cancer

Small intestine cancer is a rare disease in which malignant (cancer) cells form in the tissues of the small intestine.

The small intestine is part of the body's digestive system, which also includes the esophagus, stomach, and large intestine. The digestive system removes and processes nutrients (vitamins, minerals, carbohydrates, fats, proteins, and water) from foods and helps pass waste material out of the body. The small intestine is a long tube that connects the stomach to the large intestine. It folds many times to fit inside the abdomen.
cdr0000751388.jpg
The small intestine connects the stomach and the colon. It includes the duodenum, jejunum, and ileum.

There are five types of small intestine cancer.

The types of cancer found in the small intestine are adenocarcinoma, sarcoma, carcinoid tumors, gastrointestinal stromal tumor, and lymphoma. This summary discusses adenocarcinoma and leiomyosarcoma (a type of sarcoma).

Adenocarcinoma starts in glandular cells in the lining of the small intestine and is the most common type of small intestine cancer. Most of these tumors occur in the part of the small intestine near the stomach. They may grow and block the intestine.

Leiomyosarcoma starts in the smooth muscle cells of the small intestine. Most of these tumors occur in the part of the small intestine near the large intestine.

See the following PDQ summaries for more information on small intestine cancer:

  • Adult Soft Tissue Sarcoma Treatment
  • Childhood Soft Tissue Sarcoma Treatment
  • Adult Non-Hodgkin Lymphoma Treatment
  • Childhood Non-Hodgkin Lymphoma Treatment
  • Gastrointestinal Carcinoid Tumors Treatment
  • Gastrointestinal Stromal Tumors Treatment

Diet and health history can affect the risk of developing small intestine cancer.

Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. Talk with your doctor if you think you may be at risk. Risk factors for small intestine cancer include the following:

  • Eating a high-fat diet.
  • Having Crohn disease.
  • Having celiac disease.
  • Having familial adenomatous polyposis (FAP).

Possible signs of small intestine cancer include abdominal pain and unexplained weight loss.

    1|2|3
    Next Article:

    Today on WebMD

    Colorectal cancer cells
    A common one in both men and women.
    Lung cancer xray
    See it in pictures, plus read the facts.
     
    sauteed cherry tomatoes
    Fight cancer one plate at a time.
    Ovarian cancer illustration
    Do you know the symptoms?
     
    Jennifer Goodman Linn self-portrait
    Blog
    what is your cancer risk
    HEALTH CHECK
     
    colorectal cancer treatment advances
    Video
    breast cancer overview slideshow
    SLIDESHOW
     
    prostate cancer overview
    SLIDESHOW
    lung cancer overview slideshow
    SLIDESHOW
     
    ovarian cancer overview slideshow
    SLIDESHOW
    Actor Michael Douglas
    Article