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Table 3 Cumulative results of sentinel lymph node (SLN) biopsy for high-risk cutaneous squamous cell carcinoma

From: Sentinel lymph node biopsy for high-risk cutaneous squamous cell carcinoma: clinical experience and review of literature

  All sites Head/Neck Truncal/Extremity
# total cases 130 71 59
# total cases with identified SLN 128 69 59
# cases with SLN follow up 100 51 49
# cases with +SLN 18 7 11
# cases with +SLN and follow up 11 4 7
# local recurrences (LR) 5 1 4
# nodal recurrences (NR) 2 0 2
# distant recurrences (DR) 5 0 5
Rate of SLN positivity 14.1% 10.1% 18.6%
SLN failure rate* 2.2% 0% 4.8%
SLN negative predictive value 97.8% 100.0% 95.2%
SLN false negative rate† 15.4% 0% 22.2%
  1. *defined as the percentage of recurrences in the SLN-negative biopsied nodal basins
  2. †defined as the rate of nodal recurrences to the number of false negative and true positive SLN cases