CT colonography after incomplete colonoscopy in subjects with positive faecal occult blood test

Figure 1 Adenomatous polyp of 13 mm of the ascending colon in a 61-year-old female with initial colonoscopy interrupted at the descending colon for severe discomfort. A: Endoluminal CT image of the ascending colon shows 13 mm sessile polyp lying on a fold; B and C: Axial CT images acquired in supine and prone position show the polypoid lesion (arrow) on a fold; D: Sessile polyp of 13 mm of the ascending colon found at repeat colonoscopy. Histology evaluation revealed adenomatous polyp.