Clinical Study of Ultrasonographic Risk Factors for Central Lymph Node Metastasis of Papillary Thyroid Carcinoma

BackgroundThyroid cancer is the most common malignancy of the endocrine system worldwide. Papillary thyroid cancer (PTC) is the most common pathologic type. The preoperative diagnosis of PTC and central lymph node metastasis (CLNM) or metastatic tendency is of great clinical significance to the diag...

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Autores principales: Yang Guang, Wen He, Wei Zhang, Hongxia Zhang, Yukang Zhang, Fang Wan
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Publicado: Frontiers Media S.A. 2021
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spelling oai:doaj.org-article:64db80529467475db4602d339d78621d2021-12-01T18:23:20ZClinical Study of Ultrasonographic Risk Factors for Central Lymph Node Metastasis of Papillary Thyroid Carcinoma1664-239210.3389/fendo.2021.791970https://doaj.org/article/64db80529467475db4602d339d78621d2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fendo.2021.791970/fullhttps://doaj.org/toc/1664-2392BackgroundThyroid cancer is the most common malignancy of the endocrine system worldwide. Papillary thyroid cancer (PTC) is the most common pathologic type. The preoperative diagnosis of PTC and central lymph node metastasis (CLNM) or metastatic tendency is of great clinical significance to the diagnosis, treatment and prognosis of these patients. This study was conducted to investigate the correlation between ultrasound features and central CLNM of PTC.MethodsThis study retrospectively analyzed patients who underwent PTC surgery and central lymph node dissection in the Department of Surgery, Beijing Tiantan Hospital, from January 2019 to February 2020. According to the inclusion and exclusion criteria, data from 136 patients were ultimately included, and the clinical and ultrasonic data of the patients were analyzed by multivariate regression to evaluate the correlation among grayscale ultrasound (US), superb microvascular imaging (SMI) and contrast-enhanced ultrasound (CEUS) features of thyroid nodules and CLNM of PTCs.ResultsThe multivariate analysis showed that tumor size, multifocality, microcalcification characteristics, SMI vascularization, and CEUS evaluation of contact with the adjacent capsule were correlated with PTC metastasis (P=0.008, P=0.001, P=0.028, P=0.041, and P< 0.001, respectively). Comparisons of the area under the ROC curves revealed that the area under the ROC curve of the degree of nodular invasion into the thyroid capsule was the largest (AUC: 0.754). The sensitivity and specificity for evaluating CLNM of PTC were 67.7% and 83.1%, respectively.ConclusionsUltrasound characteristics of the following features are associated with a high risk of lymph node metastasis in PTCs: maximum diameter of nodules ≥1 cm, multifocality, ≥5 microcalcifications, abundant blood flow of SMI in nodules and nodule contact with the thyroid capsule ≥25% under CEUS. Ultrasound has clinical value in the preoperative evaluation of CLNM of PTCs.Yang GuangWen HeWei ZhangHongxia ZhangYukang ZhangFang WanFrontiers Media S.A.articlepapillary thyroid carcinoma (PTC)contrast enhanced ultrasound (CEUS)ultrasonographicsuperb microvascular imaging (SMI)central lymph node metastasis (CLNM)Diseases of the endocrine glands. Clinical endocrinologyRC648-665ENFrontiers in Endocrinology, Vol 12 (2021)
institution DOAJ
collection DOAJ
language EN
topic papillary thyroid carcinoma (PTC)
contrast enhanced ultrasound (CEUS)
ultrasonographic
superb microvascular imaging (SMI)
central lymph node metastasis (CLNM)
Diseases of the endocrine glands. Clinical endocrinology
RC648-665
spellingShingle papillary thyroid carcinoma (PTC)
contrast enhanced ultrasound (CEUS)
ultrasonographic
superb microvascular imaging (SMI)
central lymph node metastasis (CLNM)
Diseases of the endocrine glands. Clinical endocrinology
RC648-665
Yang Guang
Wen He
Wei Zhang
Hongxia Zhang
Yukang Zhang
Fang Wan
Clinical Study of Ultrasonographic Risk Factors for Central Lymph Node Metastasis of Papillary Thyroid Carcinoma
description BackgroundThyroid cancer is the most common malignancy of the endocrine system worldwide. Papillary thyroid cancer (PTC) is the most common pathologic type. The preoperative diagnosis of PTC and central lymph node metastasis (CLNM) or metastatic tendency is of great clinical significance to the diagnosis, treatment and prognosis of these patients. This study was conducted to investigate the correlation between ultrasound features and central CLNM of PTC.MethodsThis study retrospectively analyzed patients who underwent PTC surgery and central lymph node dissection in the Department of Surgery, Beijing Tiantan Hospital, from January 2019 to February 2020. According to the inclusion and exclusion criteria, data from 136 patients were ultimately included, and the clinical and ultrasonic data of the patients were analyzed by multivariate regression to evaluate the correlation among grayscale ultrasound (US), superb microvascular imaging (SMI) and contrast-enhanced ultrasound (CEUS) features of thyroid nodules and CLNM of PTCs.ResultsThe multivariate analysis showed that tumor size, multifocality, microcalcification characteristics, SMI vascularization, and CEUS evaluation of contact with the adjacent capsule were correlated with PTC metastasis (P=0.008, P=0.001, P=0.028, P=0.041, and P< 0.001, respectively). Comparisons of the area under the ROC curves revealed that the area under the ROC curve of the degree of nodular invasion into the thyroid capsule was the largest (AUC: 0.754). The sensitivity and specificity for evaluating CLNM of PTC were 67.7% and 83.1%, respectively.ConclusionsUltrasound characteristics of the following features are associated with a high risk of lymph node metastasis in PTCs: maximum diameter of nodules ≥1 cm, multifocality, ≥5 microcalcifications, abundant blood flow of SMI in nodules and nodule contact with the thyroid capsule ≥25% under CEUS. Ultrasound has clinical value in the preoperative evaluation of CLNM of PTCs.
format article
author Yang Guang
Wen He
Wei Zhang
Hongxia Zhang
Yukang Zhang
Fang Wan
author_facet Yang Guang
Wen He
Wei Zhang
Hongxia Zhang
Yukang Zhang
Fang Wan
author_sort Yang Guang
title Clinical Study of Ultrasonographic Risk Factors for Central Lymph Node Metastasis of Papillary Thyroid Carcinoma
title_short Clinical Study of Ultrasonographic Risk Factors for Central Lymph Node Metastasis of Papillary Thyroid Carcinoma
title_full Clinical Study of Ultrasonographic Risk Factors for Central Lymph Node Metastasis of Papillary Thyroid Carcinoma
title_fullStr Clinical Study of Ultrasonographic Risk Factors for Central Lymph Node Metastasis of Papillary Thyroid Carcinoma
title_full_unstemmed Clinical Study of Ultrasonographic Risk Factors for Central Lymph Node Metastasis of Papillary Thyroid Carcinoma
title_sort clinical study of ultrasonographic risk factors for central lymph node metastasis of papillary thyroid carcinoma
publisher Frontiers Media S.A.
publishDate 2021
url https://doaj.org/article/64db80529467475db4602d339d78621d
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