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. Author manuscript; available in PMC: 2011 Jun 17.
Published in final edited form as: Carcinogenesis. 2006 Mar 2;27(7):1316–1322. doi: 10.1093/carcin/bgi373

Fig. 1.

Fig. 1

Macroscopic and histological analysis of ACF. (A) Gross views of ACF visualized through the Olympus prototype close-focus endoscope at a magnification of ×60. The colon epithelium was stained with 0.5% methylene blue. (B) H&E stained frozen sections of hyperplastic ACF, cross-sectional (left, ×200) and longitudinal (right, ×400) views. (C) H&E-stained frozen section of hyperplastic ACF with adjacent normal colonic mucosa indicated by the red arrows (×200). (D) H&E-stained frozen section of dysplastic ACF, cross-sectional view (×400). The inset in the upper left shows a region of surface dysplasia from the same lesion.