THE IDENTIFICATION “EX VIVO” OF THE SENTINEL LYMPHNODE IN THE COLON CANCER: PHESABILITY STUDY
Abstract:
The purpose of this study is to evaluate the feasibility and reliability of the “ex vivo” technique
in mapping the sentinel lymph node (SLN) in patients with colorectal cancer. In the period between
January 2008 and May 2011, 45 patients of the Surgery 1 Department of the Emergency County
Hospital Sibiu and of the Surgery Department of the Military Emergency Hospital Sibiu underwent this
technique when undergoing curative surgery for colon cancer. The identification quote of the sentinel
lymph node was 93,33%, a sensitivity degree of 92,85%, while the false negative SLN was 13,33%. This
data suggest that “ex vivo” SLN biopsy is feasible in colorectal cancer. Although ex vivo SLN biopsy
does not alter the lymphatic dissection, it may upstage a subset of patients. The technique of ex vivo
sentinel lymph node mapping is technically feasible with high sensitivity, high negative predictive value
and a high rate of upstaging.
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