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Covington, KY
A 52-year-old female asked:

I just had a colonoscopy this year it came out fine. my doc. did a blood test last month and it came back positive. could i get cancer that fast?

3 doctor answers • 6 doctors weighed in
Dr. Ed Friedlander
Dr. Ed Friedlanderanswered
Pathology 46 years experience
Uh, wait...: No blood test is diagnostic for colon cancer. Possibly your CEA was a bit high but that proves nothing if you're not a smoker; otherwise i must assume there is a misunderstanding. Life's tough enough without having a worry like this one. Any doubts, get a second opinion.
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5.6k viewsAnswered >2 years ago
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Dr. Stephen Noga
Dr. Stephen Nogaanswered
Medical Oncology 36 years experience
Unlikely: But there are a lot of reasons for blood in the stool. Certainly colonoscopy is not 100% as well. I am sure your doctor is working through the possible causes.
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5.6k viewsReviewed >2 years ago
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Dr. Alan Ali
Dr. Luis Villaplana
Dr. Arthur Heller
Dr. Alan Ali and 2 doctors agree3 doctors agree
Dr. Arthur Heller
Dr. Arthur Helleranswered
Gastroenterology 45 years experience
What test?: There is no blood test for colon ca. Cea can be a marker for colon ca as well as many other conditions, including benign (not cancer). Can't diagnose colon ca just by using cea; can help monitoring colon cancer patients once a diagnosis has been made, i.e. Biopsy proved mass. Colonoscopy is best test, but not perfect-can have a miss rate of abnormalities, including polyps and cancer.
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5.6k viewsReviewed >2 years ago
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Dr. Stuart Hickerson
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Last updated Sep 13, 2019

Found in:

Blood›Colonoscopy

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