RT Journal Article SR Electronic T1 Sentinel lymph nodes with isolated tumour cells and micrometastases in breast cancer: clinical relevance and prognostic significance JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 243 OP 250 DO 10.1136/jclinpath-2013-201771 VO 67 IS 3 A1 Syed Salahuddin Ahmed A1 Aye Aye Thike A1 Jabed Iqbal A1 Wei Sean Yong A1 Benita Tan A1 Preetha Madhukumar A1 Kong Wee Ong A1 Gay Hui Ho A1 Chow Yin Wong A1 Puay Hoon Tan YR 2014 UL http://jcp.bmj.com/content/67/3/243.abstract AB Aim We performed a retrospective review to determine the prognostic significance of isolated tumour cells (ITCs) and micrometastases to the sentinel lymph nodes of patients with breast cancer. Methods A total of 1044 patients with a diagnosis of invasive carcinoma of the breast who underwent surgical treatment including the sentinel lymph node biopsy procedure from July 2004 to October 2009 were included in the study. Results In 710 (68%) patients, no metastasis was seen to the sentinel lymph nodes. ITCs were detected in 22 (2.1%) patients, micrometastasis in 52 (5.0%) and macrometastases in 260 (24.9%). With a median follow-up of 28.8 months, disease recurrence was seen in 38 (3.6%) patients and 15 (1.5%) patients died of disease. No disease recurrence or deaths were recorded in women with ITCs in sentinel lymph nodes. In the micrometastasis group, 2 patients suffered disease recurrence and both died of disease. Conclusions We conclude that ITCs in the sentinel lymph nodes did not adversely impact disease free and overall survivals. Although only 2 recurrences with subsequent death occurred in the micrometastasis group, it may suggest a propensity for presence of micrometastases to augur a worse outcome, and justifies continued segregation of ITCs from micrometastasis.