What is Colorectal Cancer?

Colorectal cancer is the formation of a malignant tumor within the large intestine. The tumor is composed of a mass of cells that divide without order or control. When the tumor forms in the first section of the large intestine, it is called colon cancer. When forming in the last section, it is called rectal cancer.

Unlike benign tumors, malignant ones can invade surrounding tissue. Malignant tumors can also spread to other regions of the body through the lymphatic system or bloodstream.

Signs and Symptoms of Colorectal Cancer

The signs and symptoms of colorectal cancer may include, but are not limited to, the following:

• Blood in stool



• Diarrhea



• Constipation



• Vomiting



• Weight loss

Which test(s) and/or procedure(s) may be requested to determine if I have colorectal cancer?

Tests and procedures that can detect colorectal cancer include a digital rectal exam, x-ray with barium enema, colonoscopy, sigmoidoscopy, and fecal occult blood test.

How is this condition surgically treated?

The surgical treatment for colorectal cancer depends upon the location of the tumor. Possible surgical treatments could include colon resection, transanal resection, or colostomy.