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Table 4 Percent malignancy of individual Bethesda scores after repeat USFNA, as compared with initial USFNA

From: The role of repeat fine needle aspiration in the management of indeterminate thyroid nodules

p-USFNA r-USFNA Number of cases (%) Malignant final pathology, n (%)
B3 B2 6 (7.4) 0 (0.0)
(n = 81) B3/B4 61 (75.3) 33 (54.01)
  B5/B6 14 (17.3) 14 (100.0)
B4 B2 0 (0) 0 (NA)
(n = 15) B3/B4 12 (80) 7 (58.33)
  B5/B6 3 (20) 3 (100.0)
  1. Abbreviations: p-USFNA primary fine-needle aspiration, r-USFNA Repeat fine-needle aspiration, B2 Bethesda score II, B3 Bethesda score III, B4 Bethesda score IV, B5 Bethesda score V, B6 Bethesda score VI