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.
It helps determine how serious the cancer is and how best to treat it. Doctors also use a cancer’s stage when talking about survival statistics. The earliest stage colorectal cancers are called stage 0 (a very early cancer), and then range from stages I (1) through IV (4). As a rule, the lower the number, the less the cancer has spread.
In the ‘classic’ colorectal cancer formation model, the vast majority of cancers arise from a polyp beginning with an aberrant crypt, which then evolves into an early adenoma (<1 cm in size, with tubular or tubulovillous histology).