Prognostic Impacts of the Localization and Diameter of Breast Cancer Axillary Micrometastasis

The prognostic importance of breast cancer axillary micrometastases is still controversial. This study aims to investigate the features of the micrometastases on recurrence and survival. Surgically treated breast cancer patients who were detected to harbor axillary micrometastasis were divided into subgroups as sinusoidal and intranodal and 0.2–1 mm and 1–2 mm according to the localization and size of the micrometastases, respectively. The association of micrometastasic features on overall survival (OS) and disease-free survival (DFS) was statistically analyzed. Thirty-three women with a mean age of 58.2 SD13.3 (range: 20–95) years were included. The median follow-up period was 50 (interquartile range: 30–62) months. Sentinel lymph node biopsy was performed in 27 (81.8