%0 Journal Article
%T Prediction of Non-Sentinel Lymph Node Status in Breast Cancer Patients with Sentinel Lymph Node Metastases: Evaluation of the Tenon Score
%A Y Andersson
%A J Frisell
%A J de Boniface
%A and L Bergkvist
%J Breast Cancer: Basic and Clinical Research
%D 2012
%I 
%R 10.4137/BCBCR.S8642
%X Introduction: Current guidelines recommend completion axillary lymph node dissection (cALND) in case of a sentinel lymph node (SLN) metastasis larger than 0.2 mm. However, in 50%¨C65% of these patients, the non-SLNs contain no further metastases and cALND provides no benefit. Several nomograms and scoring systems have been suggested to predict the risk of metastases in non-SLNs. We have evaluated the Tenon score. Patients and Methods: In a retrospective review of the Swedish Sentinel Node Multicentre Cohort Study, risk factors for additional metastases were analysed in 869 SLN-positive patients who underwent cALND, using uni- and multivariate logistic regression models. A receiver operating characteristic (ROC) curve was drawn on the basis of the sensitivity and specificity of the Tenon score, and the area under the curve (AUC) was calculated. Results: Non-SLN metastases were identified in 270/869 (31.1%) patients. Tumour size and grade, SLN status and ratio between number of positive SLNs and total number of SLNs were significantly associated with non-SLN status in multivariate analyses. The area under the curve for the Tenon score was 0.65 (95% CI 0.61¨C0.69). In 102 patients with a primary tumour <2 cm, Elston grade 1¨C2 and SLN metastases ¡Ü2 mm, the risk of non SLN metastasis was less than 10%. Conclusion: The Tenon score performed inadequately in our material and we could, based on tumour and SLN characteristics, only define a very small group of patients in which negative non-sentinel nodes could be predicted.
%U http://www.la-press.com/prediction-of-non-sentinel-lymph-node-status-in-breast-cancer-patients-article-a3006