1. 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 (April 2009)
DOI: /j.gastro
Copyright © 2009 AGA Institute Terms and Conditions

2. 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  , DOI: ( /j.gastro )
Copyright © 2009 AGA Institute Terms and Conditions

3. 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  , DOI: ( /j.gastro )
Copyright © 2009 AGA Institute Terms and Conditions