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Table 1 Sentinel lymph node biopsy results

From: Sentinel lymph node biopsy is unsuitable for routine practice in younger female patients with unilateral low-risk papillary thyroid carcinoma

  Number of patients (%)
  methylene blue (n = 45) dual-agent (n = 45) In total (n = 84)
Overall success in identification of SLN 39 (86.7%) 45 (100%) 84 (93.3%)
Mean No. of SLN in identified (range) 2.7 (1-7) 5.4 (3-10) 4.1
No. of patients with positive SLN 21 (53.8%) 24 (53.3%) 45 (53.6%)
No. of patients with negative SLN 18 (46.2%) 21 (46.7%) 39 (46.4%)
Mean No. of lymph nodes examined 21.3 22.4 21.9
No. of patients with positive lymph nodes 28(71.8%) 27(60.0%) 55 (65.5%)
Positive lymph nodes only in NSLN 7(25.0%) 3(11.1%) 10 (20.0%)
False negative rate 38.9% 14.3% 25.6%
Accuracy 82.1% 93.3% 88.1%
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