Intestinal cancer occurs when cancerous cells form in the small intestine (or small bowel). When cancer develops in the large intestine (also called the large bowel or colon), it is called colorectal cancer. The small intestine connects the stomach to the large intestine. It is divided into three sections: the duodenum, jejunum and ileum. Most types of small intestine cancer develop in the duodenum.
The American Cancer Society estimates approximately 11,110 people in the United States will be diagnosed with small intestine cancer in 2020.
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