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Table 4 Bethesda Categories for all Nodules, Resection Rate and Malignancy Rate

From: Factors affecting thyroid nodule fine needle aspiration non‐diagnostic rates: a retrospective association study of 1975 thyroid biopsies

Bethesda Category n (%) Resection Rate
n (%)
Malignancy Rate
n (%)
Pathology
Non-diagnostic 168 (8.5) 18/168 (10.7) 5/18 (27.8) 4 PTC, 1 lymphoma
Benign 1500 (75.9) 120/1500 (8) 5 /120 (4.2) 4 PTC, 1 FTC
AUS/FLUS 96 (4.9) 34/96 (35.4) 4/34 (11.8)  
FN/SFN 85 (4.3) 59/85 (69.4) 13/59 (22)  
Suspicious 22 (1.1) 20/22 (90.9) 17/22 (85)  
Malignant 104 (5.3) 89/104 (85.6) 89/89 (100)  
Total 1975 340 133