Résumé
Les adénocarcinomes ampullaires sont les tumeurs malignes les plus fréquentes de l’intestin grêle et les adénomes vatériens représentent 14 à 20% des tumeurs bénignes de l’intestin grêle. L’ampullectomie endoscopique s’adresse aux adénomes, voire aux adénocarcinomes s’ils sont strictement intra muqueux [1]. Les adénocarcinomes et les adénomes représentent respectivement 50 % et 30 % des tumeurs ampullaires. La filiation adénome-cancer sur un mode de carcinogenèse colique semble établie pour ce type de tumeur. Il n’y a pas de facteur de risque épidémiologique connu en dehors des polyposes adénomateuses familiales où l’incidence cumulée d’adénomes duodénaux atteint 97 % et le risque de cancer duodénal est 300 fois supérieur à la population générale.
Abstract
Ampullary adenocarcinoma is the most frequent malignant tumour of the small bowel and Vaterian adenoma represents 14 to 20% of benign tumours of the small bowel. Endoscopic ampullectomy concerns adenomas or even adenocarcinomas if they are strictly intramucosal [1]. Adenocarcinomas and adenomas represent 50% and 30%, respectively, of ampullary tumours. The adenoma-cancer relation with a picture of colonic carcinogenesis seems to be established for this type of tumour. There is no known epidemiological risk aside from familial adenomatous polyposis (FAP) where the cumulative incidence of duodenal adenomas reaches 97% and the risk of duodenal cancer is 300 times that of the general population.
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Barthet, M. Ampullectomie endoscopique. Acta Endosc 38, 476–482 (2008). https://doi.org/10.1007/s10190-008-0007-6
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DOI: https://doi.org/10.1007/s10190-008-0007-6