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Table 1 Patient characteristics, preoperative and intraoperative findings, and pathology

From: Introducing navigation during melanoma-related sentinel lymph node procedures in the head-and-neck region

  Preoperative findings Intraoperative findings Pathology
  Age Clinical T-stage Tumor location Administered dose (MBq) No. of SNs on lymphoscintigrams No. of SNs on SPECT/CT Location SNs Total no. of removed SNs Fluorescent SNs Radioactive SNs Total no. of SNs No. tumor-positive nodes
          In vivo Ex vivo In vivo Ex vivo   
1 60 T2a Right cheek 82.0 0 4 Parotid gland (2×), level I (2×) 4 3 4 4 4 4 0
2 74 T2b Left cheek 84.9 3 3 Parotid gland, level II, level V 4 4 4 4 4 6 0
3 67 Right eyelid 84.4 1 1 Parotid gland 1 1 1 1 1 1 0
4 52 T3b Right cheek 78.2 1 1 Level V 1 1 1 1 1 1 0
5 59 T4b Left occipital region 90.2 1 1 Level V 1 1 1 1 1 1 1
6 63 T3a Right occipital region 101.4 0 1 Level II 3 3 3 3 3 4 0
7 66 T2a Vertex 75.5 2 2 Level II (2×) 3 3 3 3 3 4 0
8 43 T3a Left ear 90.1 2 2 Parotid gland, level II 3a 3 3 3 3 3 1
Average 60.5    85.8 1.25 1.9   2.5 2.4 2.5 2.5 2.5 3  
Total      10 15   20 19 20 20 20 24 2
  1. MBq megabequerel, SN sentinel node, SPECT/CT single-photon emission computed tomography combined with computed tomography
  2. aAdditional SN near injection site found with transcutaneous fluorescence imaging (and confirmed using the gamma probe) which was not seen on preoperative imaging