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Authors' response to Hassan et al
  1. Anno Graser,
  2. Frank T Kolligs
  1. University of Munich, Germany
  1. Correspondence to Dr Anno Graser, Marchioninistr. 15, Munich, D-80992, Germany; anno.graser{at}

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Regarding the letter to the editor by Hassan et al (in the January issue of Gut),1 we agree that not all patients in whom diminutive polyps are identified should be referred to colonoscopy for resection of these lesions. However, we noted in our trial2 that high resolution CT colonography (CTC) allows for reliable identification of lesions that are <10 mm; even polyps that are <6 mm in size will be detected at a sensitivity of 72% if they are adenomas, and 59% if they are non-adenomas. We agree that based …

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  • Competing interests None.

  • Provenance and peer review Not commissioned; not externally peer reviewed.