[Gross tumor volume and clinical target volume in radiotherapy: tumors of the corpus uteri].

Surgery is the major treatment of the tumours of the corpus uteri. The imaging workup is essentially used to detect locally advanced lesions which are not suitable for surgery, because the preoperative knowledge of prognostic factors seldom influences treatment strategy in the early stages. The 3D planning of external irradiation for corpus uteri tumours is not very widespread, despite its real impact in preoperative irradiation strategy or irradiation alone. In postoperative strategy its importance is less evident; however, CT planning leads to a better knowledge of the dose distribution to the critical organs, which will probably contribute to a better control of late complications.