Résumé
Analysant une série de 1000 piéces de (recto) colectomie contenant au moins un adénocarcinome invasif, les auteurs dénombrent 6 % de lésions malignes multiples, qu’ils démembrent en 3 catégories :
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1.
Cancers synchrones (3 %).
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2.
Cancer et polype cancérisé superficiellement (2 %).
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3.
Cancer et métastase intracolique (1 %).
D’autre part, des polypes bénins sont plus fréquemment associés aux cancers multiples (36 %) qu’aux cancers uniques (18 %).
Ces chiffres sont très probablement inférieurs à la réalité, puisqu’une étude se basant sur ľanalyse de pièces opératoires ne peut tenir compte du segment colique non réséqué.
Les auteurs comparent leurs données à celles de la littérature ; en accord avec cette dernière, ils confirment ľabsolue nécessité ďun examen endoscopique minutieux de tout le gros intestin lors de la découverte ďun cancer colique, afin que le chirurgien ne laisse pas en place un second foyer néoplasique.
Summary
Analyzing a series of 1000 samples from (procto) colectomy operations containing at least one invasive adenocarcinoma, the authors observed 6 % multiple malignant lesions, divided into 3 categories:
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1.
Synchronous cancer (3 %).
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2.
Cancer with superficially cancerous polyp (2 %).
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3.
Cancer with intracolic metastasis (1 %).
Moreover, benign polyps are more frequently associated with multiple cancers (36 %) than with single cancers (18 %).
These figures are very probably lower than in reality, since the study is based on samples from operations and cannot take into account the colonic segment remaining in place.
The authors compare their data with those of the literature : in agreement with other studies, they confirm the absolute necessity for a detailed endoscopic examination of the large intestine when colonic cancer is discovered, to avoid the oversight of a second neoplastic site.
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Grodos, J., Haot, J. Les cancers synchrones du côlon. Acta Endosc 17, 11–17 (1987). https://doi.org/10.1007/BF02965228
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DOI: https://doi.org/10.1007/BF02965228