Application value of thyroid nodule fine needle aspiration cytology combined with BRAF gene detection in the differential diagnosis of benign and malignant thyroid tumors
10.11958/20241258
- VernacularTitle:甲状腺结节细针穿刺细胞学联合BRAF基因检测在甲状腺良恶性肿瘤鉴别诊断中的应用价值
- Author:
Tao YANG
1
;
Yan QUAN
1
;
Jiameng ZHANG
1
;
Qingyun XIE
1
;
Linzhou HUANG
1
Author Information
1. 巴中市中心医院超声科(邮编 636000)
- Publication Type:Journal Article
- Keywords:
thyroid tumor;
ultrasonography;
biopsy,fine-needle;
proto-oncogene proteins B-raf
- From:
Tianjin Medical Journal
2025;53(9):972-976
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of thyroid nodule fine needle aspiration cytology(FNAC)combined with B-Raf proto-oncogene,serine/threonine kinase(BRAF)gene detection in the differential diagnosis of benign and malignant thyroid tumors.Methods According to the results of pathological examination,198 patients with thyroid nodules were divided into the benign lesion group(n=107)and the malignant lesion group(n=91).All patients underwent ultrasound-guided FNAC,and expression of BRAF gene was detected by real-time fluorescence quantitative polymerase chain reaction.The value of FNAC,BRAF gene detection and combined detection in the differential diagnosis of benign and malignant thyroid tumors was analyzed by Kappa consistency test and receiver operating characteristic(ROC)curves.Results The nodules were mostly under envelope in the malignant lesion group,while in the benign lesion group,which were mostly located within glands(P＜0.05).FNAC results showed that 62 cases with type II Bethesda,26 cases with type III Bethesda,29 cases with type IV Bethesda,14 cases with type V Bethesda and 67 cases with type VI Bethesda.There were significant differences in diagnostic positive rates between FNAC,BRAF gene detection,combined detection and pathological examination(P＜0.05).The area under ROC curve(AUC)of FNAC combined with BRAF gene detection for differentiating benign and malignant thyroid tumors was 0.871(95%CI:0.816-0.914),sensitivity was 90.11%,specificity was 84.11%and Kappa value was 0.737.The AUC of FNAC diagnosis was 0.833(95%CI:0.774-0.882),sensitivity was 76.92%,specificity was 89.72%and Kappa value was 0.672.The AUC of BRAF gene detection was 0.829(95%CI:0.770-0.879),sensitivity was 78.02%,specificity was 87.85%and Kappa value was 0.663.Conclusion FNAC combined with BRAF gene detection can improve differential diagnosis efficiency for benign and malignant thyroid lesions,especially enhancing the diagnostic sensitivity.
