Morphological substantiation of radiomodification of preoperative radiotherapy in patients with advanced endometrial cancer

Relevance. Endometrial cancer ranks first among oncogynecological diseases, however, 5-year survival can be achieved only in 67,7 % of patients, while 22,4 % of patients die during this period from the con­tinuation of the tumor process. Therefore, improving the complex therapy of patients with EC is very important. Purpose of the study. to investigate therapeutic pathomorphosis in pa­tients with advanced endometrial cancer with neoadjuvantchemoradiation therapy. Materials and methods. In order to study radiation pathomorphosis, 26 patients with ER T1-3N0-1M0-1 were examined. Group I consisted of 11 patients with a preoperative course of external radiation therapy SOD 30 Gywithout radiomodification, II – 15 patients with a preoperative course of external radiation therapy SOD 30 Gywith radiomodification. Results and its discussion. When conducting a comparative assessment of radiation pathomorphism in patients of the study groups, it was found that when using the preoperative course of TFD on Gy 30 with radiomodi­fication, a significant decrease in the mitotic index occurs. There is also a tendency to an increase in the degree of tumor regression, the number of pathological mitoses and stromal reactions during the preoperative course of TFD on 30 Gywith radiomodification. Conclusions. It was found that radiation therapy with EС with radiomodi­fication gives a more positive effect and regression of more than 50,0 % of the tumor volume, a decrease in its biological potential. The volume of the damaged tumor was 58,0 %, and the volume of the residual tumor was 42,0 %, that is, most of the tumor mass underwent regression.