4,035 colorectal cancer stock photos and images available, or search for colon cancer screening or colonoscopy to find more great stock photos and pictures. Doctor goes over a patient”s x-ray, screening for colon cancer. There is no single cause of colon cancer.
Colorectal cancer starts in the cells of the colon or rectum. A cancerous (malignant) tumour is a group of cancer cells that can grow into nearby tissue and destroy it. The tumour can also spread (metastasize) to other parts of the body.
But in some cases, changes to colon or rectal cells can cause colorectal cancer. Most often, colorectal cancer starts in gland cells that line the wall of the colon or rectum.
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