RESUMO
AIM: To establish the incidence of the axillary lymph node metastasis in breast cancer and some anatomo-clinical correlations useful for surgical act orientation. MATERIAL AND METHOD: The data from 450 patients, who underwent surgery for breast cancer between 2000 and 2007, were analyzed statistically according to some parameters: the age of the patients, the size and the location of the tumor, the hystopathological type, the elapsed time from the discovery of the tumor until surgery. RESULTS: The tumoral stage was: stage 0--1.1%, I--7.11%, II--50.67%, III--33.78%, IV--7.33%. From the total amount of patients who underwent surgery, only 56.44% had axillary lymph node metastasis. The patients in the forth decade of life had more frequently axillary lymph node involvement, and also those from rural habitat (65.88%). The correlation between tumor dimension and lymph node involvement was: <2 cm--1.36%, 2-5 cm--48.71%, >5 cm--86.67%. The palpation of the armpit was associated in almost a quarter of cases with false negative or false positive diagnosis. There are a lot of locally advanced cases without axillary lymph node metastases. CONCLUSIONS: Axillary lymph node status is strongly correlated with the tumor dimension and the elapsed time between diagnosis and treatment. The numerous cases of axillary lymphadenectomy without lymph node metastases (43.55%), even in locally advanced cases, advocate for a wider application of lymphatic mapping and sentinel lymph node biopsy, to avoid the pathology associated with those axillary dissections.
