Les résections endoscopiques sont adaptées aux lésions néoplasiques superficielles jusqu’au stade T1 sous-muqueux (moins de 1000 microns d’invasion). Ce sont des maladies locales à risque négligeable d’extension métastatique régionale ou générale qui justifient donc d’une résection locale. En fonction de l’histologie prédite, la technique de résection est choisie pour offrir un ratio bénéfice-risque adaptée au degré de dégénérescence de la lésion :
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