Epidemiologic, Clinical, Ultrasonographic, and Cytological Features of Thyroid Nodules in Predicting Malignancy Risk: A Retrospective Study of 442 French Afro-Caribbean Patients

Table 3

Malignancy risk and Bethesda classification.

Cytological diagnosis Bethesda classification	All FNAB, N (%)	All FNAB with surgical follow-up, N (%)	Malignancy risk, N (%)	Benign histology,N (%)
Benign II	347 (55%)	111 (45%)	0 (0%)	111 (100%)
AUS/FLUS III	60 (9.5%)	41 (16%)	2 (5%)	39 (94%)
Follicular neoplasm IV	79 (12.5%)	57 (27%)	5 (9%)	52 (91%)
Suspicious of malignancy V	15 (2.5%)	15 (5%)	5 (33%)	10 (66%)
Nondiagnostic I	115 (18.5%)	36 (14%)	0 (0%)	36 (100%)
Total	616	260	12	248

Number and percentage of cases operated in each diagnostic category; number and percentage of cases calculated from the total number of operated cases in each category. AUS/FLUS: atypia of undetermined significance or follicular lesion of undetermined significance.