Colon cancer

Alternative Names

Colorectal cancer; Cancer – colon; Rectal cancer; Cancer-rectum; Adenocarcinoma- colon; Colon -adenocarcinoma

Definition of Colon cancer

Colon, or colorectal, cancer is cancer that starts in the large intestine (colon) or the rectum (end of the colon).

Causes, incidence, and risk factors

According to the American Cancer Society, colorectal cancer is one of the leading causes of cancer-related deaths in the United States. However, early diagnosis often leads to a complete cure.


Many cases of colon cancer have no symptoms. The following symptoms, however, may indicate colon cancer:

Signs and tests

With proper screening, can be detected before symptoms develop, when it is most curable.


Treatment depends partly on the stage of the cancer. In general, treatments may include:

Expectations (prognosis)

Colon cancer is, in many cases, a treatable disease if caught early.


David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc., and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. – 11/5/2009

Barium enema
Digestive system
Rectal cancer, X-ray
Sigmoid colon cancer, X-ray
Spleen metastasis - CT scan
Structure of the colon
Large intestine
Stages of cancer
The large intestine
Colon culture
Colon cancer - series
Colostomy - series
Large bowel resection - series

ADAM Medical Encyclopedia

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