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Indicators of multifocality in papillary thyroid carcinoma concurrent with Hashimoto's thyroiditis.

ABSTRACT: Currently, no definitive diagnostic tool is available to distinguish unifocal and multifocal papillary thyroid carcinoma (PTC). This study aims to identify potential diagnostic markers of multifocal PTC. In 471 Hashimoto's thyroiditis (HT) patients, the significant difference was revealed in anti-thyroid peroxidase antibody (TPOAb) concentration, the cytokeratin-19 (CK-19) expression, the occurrence of the B-Raf proto-oncogene serine/threonine kinase (BRAF) mutations and the rearrangement in transformation (RET)/PTC. The patients' samples were assayed for the expression of CK-19, cyclooxygenase-2 (COX-2), galectin-3, and the protein human bone marrow endothelial cell marker-1 (HBME-1) using immunohistochemistry. The BRAF gene mutation was detected using a sequencer. Differences were examined using the Kruskal-Wallis test and the Chi-squared and Fisher's exact tests. The results showed that the elevated CK-19 expression, and the presence of BRAF mutations and RET/PTC rearrangements were indicators of multifocal PTC in HT, suggesting the need for total bilateral thyroidectomy. Among HT patients with TPOAb > 1300 IU/Ml, the occurrence of central lymph node metastasis is significantly higher in multi-focal PTC than single-focal PTC. Therefore, these markers may prove useful for discerning between uni- and multifocal PTC, thereby preventing unnecessary surgery in the treatment of unifocal PTC and promoting sufficient treatment of multifocal PTC.

SUBMITTER: Dong S

PROVIDER: S-EPMC6726987 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Indicators of multifocality in papillary thyroid carcinoma concurrent with Hashimoto's thyroiditis.

Dong Shuai S Xie Xiao-Jun XJ Xia Qing Q Wu Yi-Jun YJ

American journal of cancer research 20190801 8

Currently, no definitive diagnostic tool is available to distinguish unifocal and multifocal papillary thyroid carcinoma (PTC). This study aims to identify potential diagnostic markers of multifocal PTC. In 471 Hashimoto's thyroiditis (HT) patients, the significant difference was revealed in anti-thyroid peroxidase antibody (TPOAb) concentration, the cytokeratin-19 (CK-19) expression, the occurrence of the B-Raf proto-oncogene serine/threonine kinase (BRAF) mutations and the rearrangement in tra ...[more]

PMID: 31497359

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Project description:BackgroundHashimoto's thyroiditis (HT) is the most prevalent inflammatory disorder of the thyroid gland. Current studies have reported the coexistence rate between HT and papillary thyroid carcinoma (PTC) is quite high. The objective of this study was to evaluate the impact of HT on the predictive factors of central compartment lymph node metastasis (CLNM) in PTC.MethodsA retrospective investigation was performed on PTC patients. They were subclassified into HT and non-HT groups. The results of preoperative neck ultrasound (US) examinations were reviewed. The clinical characteristics and the predictive value for CLNM were explored and compared between the two groups.ResultsA total of 756 patients were included in this study. There were more female patients (86.1%) in the PTC coexistent with the HT group than non-HT group. The patients with HT group had higher preoperative serum level of TSH. There was statistically significant difference between the HT patients and non-HT patients in nodular vascularization. Univariate and multivariate analyses showed that male, age ≤45 years old, tumor diameter >1 cm, and presence of suspicious central compartment lymph node on US, irregular nodular shape, multifocal carcinoma were independent predictive factors of CLNM in PTC patients. It was showed that male, age ≤45 years old, tumor diameter >1 cm, multifocality, and presence of suspicious central lymph node on US were risk factors for CLNM in non-HT patients. Only tumor diameter >1 cm and presence of suspicious central lymph node on US were independently correlated with CLNM in HT patients. The sensitivity of the multivariate model was 63.5%, and specificity was 88.9% for prediction CLNM in HT patients. For non-HT patients, the AUC was 80.6%, the sensitivity of the multivariate model was 64.5%, and specificity was 85.2.ConclusionPTC combined with HT is more common in women, and TSH level in HT group is higher than that in patients with PTC alone. Regardless of that HT is not a related risk factor of CLNM in PTC, our result suggested that different predictive systems should be used for HT and non-HT patients respectively to have a more accurate evaluation of CLNM in clinic.

Dataset Information

Indicators of multifocality in papillary thyroid carcinoma concurrent with Hashimoto's thyroiditis.

Publications

Indicators of multifocality in papillary thyroid carcinoma concurrent with Hashimoto's thyroiditis.

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