Ultrasound guided percutaneous axillary lymph node core biopsy: How often is the sentinel lymph node being biopsied?

Ultrasound guided percutaneous axillary lymph node core biopsy: How often is the sentinel lymph node being biopsied?
P.D. Britton, E. Provenzano, S. Barter, M. Gaskarth, A. Goud, P. Moyle, R. Sinnatamby, M. Wallis, J.R. Benson, P. Forouhi, G.C. Wishart
The Breast 18, 1, 2009, 13-16

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This study aimed to establish the frequency of successful targeting of the SLN by ultrasound guided biopsy. False negative rate for CB of 30%. Reasons for false -ves - failure to sample the sentinel lymph node in 10 (45%) and failure to sample the metastatic disease in the sentinel node in 11 (55%). Better methods of identifying the sentinel lymph node and more adequate sampling are required