PMC3961312_01
Findings under electronic colonoscope. Ascending colon mass in (A) the first colonoscopy and (B) the second colonoscopy.
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Electronic colonoscopy was performed in order to identify the pathological characteristics of the ascending colon mass (Fig. 1A). Biopsy under electronic colonoscope revealed an ascending colon adenocarcinoma (Figs. 1B and 2B).
Histological appearance of ascending colon mass. (A) Hematoxylin and eosin stain of (A) high-grade intraepithelial neoplasia in the first biopsy and (B) adenocarcinoma in the second biopsy. Magnification, x200.
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Biopsy revealed an ascending colon high-grade intraepithelial neoplasia (Fig. 2A). Biopsy under electronic colonoscope revealed an ascending colon adenocarcinoma (Figs. 1B and 2B).