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Site distribution of gastrointestinal carcinoids differs between races
  1. T Konishi1,
  2. T Watanabe1,
  3. T Muto2,
  4. K Kotake3,
  5. H Nagawa4,
  6. on behalf of the Japanese Society for Cancer of the Colon and Rectum
  1. 1Department of Surgical Oncology, University of Tokyo, Tokyo, Japan
  2. 2Department of Surgery, Cancer Institute Hospital, Tokyo, Japan
  3. 3Department of Surgery, Tochigi Cancer Centre, Tochigi, Japan
  4. 4Department of Surgical Oncology, University of Tokyo, Tokyo, Japan
  1. Correspondence to:
    Dr T Watanabe
    Department of Surgical Oncology, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; toshwatanabe{at}

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We read with great interest the guideline for gastroenteropancreatic neuroendocrine (including carcinoid) tumours by Ramage et al (Gut 2005;54(suppl 4):iv1–16). In these excellent guidelines, they reported that the appendix is the most frequent site of gastrointestinal primary endocrine tumours (35% of the total number of tumours) while colon and rectal carcinoids comprise only 7% and 10%, respectively. One important aspect not mentioned however was the fact that …

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  • Conflict of interest: None declared.

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