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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