The patient is randomized to one of the following groups:
* Experimental group: Radiotherapy in painting dose on histoscannographic mapping * Control group: standard pan-sinus radiotherapy
Patients >18 years of age
Patient with a histologically confirmed malignant tumor of the sinuses, any histological type except melanoma, lymphoma, mesenchymal tumors (sarcoma)
Patient treated by endoscopic sinonasal surgery with histosurgical mapping within 2 months prior to radiotherapy
Indication for radiotherapy treatment (photontherapy or protontherapy), without neoadjuvant chemotherapy (concomitant chemotherapy is permitted)
Patient with not operated in place tumor
Patient with distant metastases
Patient treated with neoadjuvant chemotherapy
Pregnant or breast-feeding woman or absence of contraception during genital activity