The Authors have examined 1159 lymph nodes obtained from 64 cases of breast carcinoma to value the presence of a correlation between the insurgence of metastases and lymph node dimensions. Metastases were more frequent in larger lymph nodes. Nevertheless, metastases were also present in small (< 5 mm) or very small (< 2 mm) lymph nodes. This indicates the importance to carefully examine small lymph nodes during gross examination and to obtain multiple sections from them.