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  • Title: Carcinoid tumours in the gastrointestinal tract--a population-based study from Western Norway.
    Author: Helland SK, Prøsch AM, Viste A.
    Journal: Scand J Surg; 2006; 95(3):158-61. PubMed ID: 17066609.
    Abstract:
    OBJECTIVE: To analyze population-based incidence, anatomic distribution and patient characteristics of gastrointestinal carcinoid tumours. BACKGROUND: Neuroendocrine carcinomas (NE, carcinoid tumours) arise from neuroendocrine cells and are most commonly found in gastrointestinal tract and lungs. Previous studies on carcinoids report varying incidence rates, location of tumours and patient survival rates. METHODS: Retrospective study. 88 patients were diagnosed with carcinoids located in the gastrointestinal tract in the period 1983-2003 in the Norwegian counties Hordaland and Sogn og Fjordane. Patient and tumour characteristics, treatment and survival were analyzed in a sub-group of 51 patients treated at Haukeland University Hospital. RESULTS: Incidence of carcinoids was 0.8 when analyzed from the counties Hordaland and Sogn og Fjordane as well as when analyzed from Haukeland University Hospital. There were 26 men and 25 women. Median age at surgery was 61 years (range 17-87 years). The tumours were located in the small bowel in 53%, appendix 18%, colon 4%, rectum 4%, stomach 8% and duodenum 10%. Five-year survival rate was 50% in stomach, 80% in duodenum, 43% in the small bowel, 100% for tumours in appendix, 40% in colon and 100% in rectum. CONCLUSION: Carcinoid tumours are relatively uncommon neoplasms and most of them are found in the small bowel. Carcinoids in the ileum tend to be more aggressive and carry a poorer prognosis than carcinoids at other locations. Tumours in the appendix are found at lower age and in an early stage. They rarely metastasize and have an excellent prognosis.
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