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Can a CT scan identify colon cancer in the early stages?

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Colorectal cancer is often found after symptoms appear, but most people with early colorectal cancer don't have symptoms of the disease. ... Endorectal MRI: MRI scans can be used in patients with rectal cancers to see if the tumor has spread into nearby structures. read more

CT scans usually don't catch neoplasms smaller than a millimeter as submillimeter images are difficult distinguish from background artifact, which is noise. read more

“CT scans are adept at locating pathology IN the abdomen or outside of the bowel,” says Sander R. Binderow, MD, FACS, FASCRS of Atlanta Colon & Rectal Surgery. Dr. Binderow continues, “CT is very good for solid organ disease — liver, spleen, kidneys. It can show metastatic colon cancer that has spread to the liver. “Colon cancer, however, starts inside of the bowel. read more