摘要 : Papillon experience and the Lyon R96-02 trial have shown that contact X-ray brachytherapy of 50 kVis efficient and safe to achieve long term local control and organ preservation for cT1 and early cT2-3 rectalcancers. The OPERA tri... 展开 Papillon experience and the Lyon R96-02 trial have shown that contact X-ray brachytherapy of 50 kVis efficient and safe to achieve long term local control and organ preservation for cT1 and early cT2-3 rectalcancers. The OPERA trial, using the Papillon 50TMmachine, brings further support to this preservationstrategy for selected T2T3ab lesions. Future trials using a contact X-ray boost will try to consolidate andenlarge its place in organ preservation for rectal cancers. (c) 2021 Les Auteurs. Publie par Elsevier Masson SAS au nom de Societe francaise de radiotherapieoncologique (SFRO). Cet article est publie en Open Access sous licence CC BY-NC-ND (http:// creativecommons.org/licenses/by-nc-nd/4.0/). 收起