Patient History: A 60-year old female with colonic polyp. Slides: Click on the image to enlarge. Click on Back to return to this page Your Diagnosis:
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Our Diagnosis Colon biopsy: Adenocarcinoma arising in a tubular adenoma with invasion into the core of the polyp. Comment: The desmoplasia and haphazard arrangement of the glands are evidence of invasion into the core of the polyp.