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A 45-year-old member asked:

How is colorectal cancer diagnosed usually?

2 doctor answers3 doctors weighed in
Dr. Gurmukh Singh
Pathology 49 years experience
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.
Dr. Robert Cloud
Colon and Rectal Surgery 41 years experience
Colon cancer dx: Colon cancer is usually diagnosed at colonoscopy

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A 36-year-old member asked:

What areas does colorectal cancer usually affect before metastasis?

2 doctor answers2 doctors weighed in
Dr. Gurmukh Singh
Pathology 49 years experience
Unclear question: Before metastases, colorectal cancer affects the mucosa and wall of large intestine. Tumors on the left side of the colon are more common than on the right side. See this site for more info. http://www.ncbi.nlm.nih.gov/pubmedhealth/pmh0001308/.

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Last updated Nov 28, 2014

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