Volume 136, Issue 4, Pages (April 2009)

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Volume 136, Issue 4, Pages 1174-1181 (April 2009) Narrow-Band Imaging Without Optical Magnification for Histologic Analysis of Colorectal Polyps Douglas K. Rex Gastroenterology Volume 136, Issue 4, Pages 1174-1181 (April 2009) DOI: 10.1053/j.gastro.2008.12.009 Copyright © 2009 AGA Institute Terms and Conditions

Figure 1 Endoscopic photographs of adenomas. (A) A small adenoma shows brown color relative to the surrounding mucosa, short thick vessels surrounding pits (brown structures), and tubular or oval pits (white structures). (B) An adenoma with a central brown depression. (C) An adenoma with brown color, vessels, tubular pits, and a pit surrounded by straight vessels, in this instance in the shape of a pentagon (arrow). Gastroenterology 2009 136, 1174-1181DOI: (10.1053/j.gastro.2008.12.009) Copyright © 2009 AGA Institute Terms and Conditions

Figure 2 Endoscopic photographs of hyperplastic polyps. (A) A small hyperplastic polyp with a bland appearance and black dots surrounded by white. (B) A proximal colon hyperplastic polyp with a bland appearance and thin vessels coursing across the surface and not surrounding pits. (C) A flat cecal hyperplastic polyp showing a bland appearance and black dots surrounded by white. Arrows show the edges on one side of the polyp. Gastroenterology 2009 136, 1174-1181DOI: (10.1053/j.gastro.2008.12.009) Copyright © 2009 AGA Institute Terms and Conditions