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  • Title: Integrating BRAFV600E mutation, ultrasonic and clinicopathologic characteristics for predicting the risk of cervical central lymph node metastasis in papillary thyroid carcinoma.
    Author: Zhang Z, Zhang X, Yin Y, Zhao S, Wang K, Shang M, Chen B, Wu X.
    Journal: BMC Cancer; 2022 Apr 27; 22(1):461. PubMed ID: 35473554.
    Abstract:
    BACKGROUND: The advantages of prophylactic central lymph node dissection (CLND) for clinically node-negative patients remained a great deal of controversies. Our research was aimed to analyze the relationship between cervical central lymph node metastasis (CLNM) and BRAFV600E mutation, ultrasonic and clinicopathologic characterizes in papillary thyroid carcinoma (PTC). METHODS AND MATERIALS: In current study, a total of 112 consecutive PTC patients who experienced thyroidectomy plus cervical central neck dissection were included in our research. All PTC were pre-operatively analyzed by ultrasonic features, including tumor size, multifocality or not, tumor location, internal components, echogenicity, microcalcification, margins, orientation, taller than wide shape, and internal vascularity. The presence of clinicopathologic factors, including age, sex, T stage, Hashimoto's thyroiditis, and BRAFV600E mutation was then investigated. Univariate and multivariate analysis were conducted to check into the relationship between predictive factors and cervical CLNM in PTC patients, and then a predictive model was also established. RESULTS: Pathologically, 58.0% (65/112) of the PTC patients harbored cervical CLNM. Univariate and multivariate analysis were conducted to identify age < 55 years, tumor size > 10 mm, microcalcification, non-concomitant Hashimoto's thyroiditis and BRAFV600E mutation were predictive factors for cervical CLNM in PTC. The risk score for cervical CLNM in PTC patients was calculated: risk score = 1.284 × (if age < 55 years) + 1.241 × (if tumor size > 10 mm) + 1.143 × (if microcalcification) - 2.097 × (if concomitant Hashimoto's thyroiditis) + 1.628 × (if BRAFV600E mutation). CONCLUSION: Age < 55 years old, PTC > 10 mm, microcalcification, non-concomitant Hashimoto's thyroiditis and BRAFV600E mutation are predictive factors for cervical CLNM. BRAFV600E mutation by pre-operative US-FNA technology synergized with clinicopathologic and ultrasonic features is expected to guide the appropriate surgical management for PTC patients.
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