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Two 25-mm and 20-mm adenocarcinomas in sigmoid colon of 65-year-old man detected by DCBE.
A. DCBE image of sigmoid colon showing two polypoid masses (arrows). B, C. Colonoscopy performed three weeks after DCBE showing 25-mm polypoid mass with ulceration in sigmoid colon (B) and another 20-mm polypoid mass located more proximally (C). DCBE = double-contrast barium enema
