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Table 2 Proportion of malignancy as a function of Bethesda score for p-USFNA and r-USFNA

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

Diagnostic study Bethesda score Number of cases (%) Malignant final pathology, n (%)
p-USFNA B3 81 (84.4) 47 (58.0)
  B4 15 (15.6) 10 (66.7)
r-USFNA B3 55 (73.3) 30 (54.6)
  B4 18 (26.7) 10 (55.7)
  1. Abbreviations: p-USFNA primary fine-needle aspiration, r-USFNA Repeat fine-needle aspiration, B3 Bethesda score III, B4 Bethesda score IV