Small early tubular adenomas and mixed colonic polyps found on screening flexible sigmoidoscopy do not predict proximal neoplasia in males Nadeem Ullah,

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Small early tubular adenomas and mixed colonic polyps found on screening flexible sigmoidoscopy do not predict proximal neoplasia in males Nadeem Ullah, Kashif Qureshi, James Hatfield, Paula Sochacki, Doina David, Hassan Albataineh, Luis Mejia, Chaya Kenkre, Michael Lawson, Martin Tobi Clinical Gastroenterology and Hepatology Volume 2, Issue 3, Pages 246-251 (March 2004) DOI: 10.1016/S1542-3565(04)00012-6

Figure 1 Immunohistochemical staining of a true mixed polyp with Adnab-9 shows Adnab-9—stained crypt lumen (open arrow) within the hyperplastic portion of the polyp. There is an abrupt transition (dark arrow) between the dysplastic or adenomatous glands and adjacent hyperplastic glands. Clinical Gastroenterology and Hepatology 2004 2, 246-251DOI: (10.1016/S1542-3565(04)00012-6)

Figure 2 Photomicrograph of a serrated polyp. Note the saw-tooth—shaped hyperplastic glands near the surface of the polyp and dysplastic or adenomatous glands within the deep portion of the polyp. The dysplastic glands contain cells with stratified cigar-shaped nuclei, mitotic figures, and displacement of goblet cells to the base of some glands (H&E; original magnification 100×). Clinical Gastroenterology and Hepatology 2004 2, 246-251DOI: (10.1016/S1542-3565(04)00012-6)