[NOMOGRAM AS A PROGNOSTIC TOOL FOR LYMPH NODE METASTASIS IN PATIENTS WITH BREAST CANCER]

It was retrospectively analyzed clinicopathological features of 529 breast cancer patients treated at the Ulyanovsk Oncology Center. Of 529 patients 235 (44.4%) had at least one positive axillary lymph node. Tumor size (p = 0,0005), histological grade (p = 0004), lymphovascular invasion (p < 0,0001), HER2-status (p = 0,014) and total score of malignancy (p < 0,0001) were significant independent predictors for lymph nodes metastases. By univariate and multivariate regression analysis it was created the graphic variant of nomogram which could predict the risk of lymph nodes metastases in breast cancer patients. An area under ROC-curve in our nomogram reached 0,737 that demonstrated high prediction level of accuracy of the developed model. Thus new nomogram is a useful tool in planning axillary surgery in breast cancer patients.