How is colorectal cancer diagnosed usually?

Colonoscopy, imaging: And biopsy. A lesion may be detected on colonscopy or barium enema or the more recent ct scans. The lesion is biopsied and the tissue examined by a pathologist to make the diagnosis. Colon cancer may be suspected if there is blood in stool, either obvious or occult.

Colon cancer dx: Colon cancer is usually diagnosed at colonoscopy