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Pancolonic indigo carmine dye spraying for the detection of dysplasia in ulcerative colitis
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  • Published on:
    Acetic acid spray in colonoscopy; an alternative to chromoendoscopy
    • Yutaka J Kawamura, Surgeon
    • Other Contributors:
      • Kazutomo Togashi, Jun'ichi Sasaki, Fumio Konishi

    Dear Editor

    We read with interest the article by Rutter et al. [1] and the letter in response to this article by Hata et al.[2] Rutter demonstrated the advantage of magnifying chromoendoscopy using indigo carmine for detection of dysplasia compared to conventional colonoscopy without dye spray by back-to-back colonoscopy in patients with longstanding ulcerative colitis.

    Hata discuss...

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    Conflict of Interest:
    None declared.
  • Published on:
    To dye, or not to dye? That is beyond question!
    • Keisuke Hata, M.D.
    • Other Contributors:
      • Toshiaki Watanabe, Masaru Shinozaki, Tetsu Kojima, and Hirokazu Nagawa

    Dear Editor

    We have read the article by Rutter MD et al.[1] with great interest.

    They demonstrated that a dye spraying method with indigo carmine successfully detected dysplastic lesions in surveillance colonoscopy for ulcerative colitis (UC), and proved by back to back colonoscopy that such a method is effective. Since 1979, we have carried out a surveillance colonoscopy programme for UC-associat...

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    Conflict of Interest:
    None declared.