In Situ Preservation of Parathyroid Gland With Vasculature for Papillary Thyroid Carcinoma Is Associated With Higher PTH Levels After Total Thyroidectomy

2021 ◽  
pp. 014556132110398
Author(s):  
Chuanchang Yin ◽  
Bin Song ◽  
Weihong Zheng ◽  
Xingrui Li ◽  
Huichuan Zhao ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Total Thyroidectomy ◽  
Parathyroid Gland ◽  
Papillary Thyroid ◽  
Postoperative Serum ◽  
Group 2 ◽  
Thyroid Parenchyma ◽  
Group 1

Purpose: To evaluate the impact of parathyroid gland vasculature preservation in-situ technique (PGVPIST) on postoperative parathyroid hormone (PTH) and calcium plasma levels in thyroid patients undergoing total thyroidectomy for papillary thyroid carcinoma (PTC). Study Design: Retrospective cohort study. Methods: Patients with PTC who underwent total thyroidectomy by either the conventional technique (group 1, January 2019 to January 2020) or PGVPIST (group 2, January 2020 to January 2021) were compared. Postoperative blood calcium levels and PTH levels were assessed in these groups. Results: Totally 149 patients with consecutive PTC underwent total thyroidectomy, including 60 patients in group 1 and 89 patients in group 2. Postoperative serum calcium levels in group 1 were insignificantly lower than in group 2 at day 1 (2.18 ± 0.02 vs 2.15 ± 0.01 mmol/L) and day 30 (2.27 ± 0.02 vs 2.38 ± 0.11) after surgery. But postoperative serum PTH levels in group 1 were significantly lower than that in group 2 at day 1 (23.68 ± 2.54 vs 31.46 ± 2.11 pg/mL) and day 30 (45.63 ± 3.21 vs 55.65 ± 2.89 pg/mL) after surgery. Conclusion: Parathyroid gland vasculature preservation in-situ technique for PTC is associated with higher PTH level after total thyroidectomy. The parathyroid gland vasculature mostly strongly adheres with adjacent thyroid parenchyma. Therefore, deferred processing of tiny thyroid parenchyma of parathyroid gland vessels is essential to prevent devascularization.

scholarly journals Association between Tumor Size and Bilateral Involvement in Papillary Thyroid Carcinoma

2016 ◽  
Vol 2016 ◽  
pp. 1-3
Author(s):  
Suna Erkilic ◽  
Fatih Celenk ◽  
Zehra Bozdag
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Tumor Size ◽  
Surgical Procedure ◽  
Tertiary Care ◽  
Papillary Thyroid ◽  
Tertiary Care Medical Center ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Background. Tumor multifocality and bilaterality of papillary thyroid carcinoma (PTC) are important factors when selecting the most appropriate surgical procedure. The aim of this study was to assess the bilaterality rate in PTC and the relationship between the tumor size and bilaterality.Materials and Methods. Thyroidectomy specimens with a diagnosis of PTC were retrospectively reviewed in the Pathology Department of a tertiary care medical center. Specimens were divided into three groups according to the size of the primary and contralateral tumor foci. Tumors less than or equal to 1 cm in each lobe were included in group 1. Group 2 consisted of tumors greater than 1 cm in one lobe and less than 1 cm in the other lobe. Tumors greater than 1 cm in each lobe were included in group 3.Results. We identified 868 total thyroidectomy specimens with a diagnosis of PTC between 2001 and 2011. Of these cases, both thyroid lobes were involved in 262 cases (32%). There were 109 (42%), 121 (46%), and 32 cases (12%) in group 1, group 2, and group 3, respectively.Conclusion. Bilaterality is frequent in PTC and is not related to tumor size. Accordingly, the high frequency of bilateral disease in PTC should be kept in mind when determining the extent of the surgical procedure.

scholarly journals Predictors of thyroglobulin in the lymph nodes recurrence of papillary thyroid carcinoma undergoing total thyroidectomy

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Zhichao Xing ◽  
Yuxuan Qiu ◽  
Zhe Li ◽  
Lingyun Zhang ◽  
Yuan Fei ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Lymph Nodes ◽  
Total Thyroidectomy ◽  
Radioactive Iodine ◽  
Independent Predictor ◽  
Central Neck Dissection ◽  
American Thyroid Association ◽  
Papillary Thyroid ◽  
Serum Thyroglobulin

Abstract Background To investigate the association between postoperative lymph nodes (LNs) recurrence and distinct serum thyroglobulin (Tg) levels in patients with papillary thyroid carcinoma (PTC). Methods This study included PTC patients who underwent total thyroidectomy (TT) with at least central neck dissection and then re-operated due to recurrence of LNs between January 2013 and June 2018. These patients were grouped by negative or positive serum Tg levels according to the American Thyroid Association guidelines. Results Of the 60 included patients, 49 underwent radioactive iodine (RAI) treatment. Maximum unstimulated Tg (uTg) ≥ 0.2 ng/mL were associated with larger diameter of recurrent LNs (P = 0.027), and higher rate of metastatic LNs (P < 0.001). Serum-stimulated Tg (off-Tg) ≥ 1 ng/mL (P = 0.047) and unstimulated Tg (on-Tg) ≥ 0.2 ng/Ml (P = 0.013) were associated with larger diameter of recurrent LNs. Number of metastatic LNs ≥ 8 was an independent predictor for postoperative maximum uTg ≥ 0.2 ng/mL (OR = 8.767; 95% CI = 1.392–55.216; P = 0.021). Ratio of metastatic LNs ≥ 25% was an independent predictor for off-Tg ≥ 1 ng/mL (OR = 20.997; 95% CI = 1.649–267.384; P = 0.019). Conclusion Postoperative Tg-positive status was associated with larger size of recurrent LNs. Number of metastatic LNs ≥ 8 and ratio of metastatic LNs ≥ 25% were independent predicators for uTg-positive and off-Tg-positive status, respectively.

P-204 Case report of cutaneous papillary thyroid carcinoma 16 years post total thyroidectomy for benign goiter

Oral Oncology ◽  
2021 ◽  
Vol 118 ◽  
pp. 4-5
Author(s):  
Kefalogianni Thiresia ◽  
Klonaris Dionysios ◽  
Oikonomou Dimitris ◽  
Psomadaki Lydia ◽  
Mastorakis Georgios ◽  
...  
Keyword(s):  
Case Report ◽  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Total Thyroidectomy ◽  
Papillary Thyroid ◽  
Benign Goiter

scholarly journals Break–apart interphase fluorescence in situ hybridization assay in papillary thyroid carcinoma: on the road to optimizing the cut-off level for RET/PTC rearrangements

2015 ◽  
Vol 172 (5) ◽  
pp. 571-582 ◽  
Author(s):  
Chiara Colato ◽  
Caterina Vicentini ◽  
Silvia Cantara ◽  
Serena Pedron ◽  
Paolo Brazzarola ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Chromosomal Rearrangements ◽  
Study Cohort ◽  
Fish Analysis ◽  
Papillary Thyroid ◽  
Qrt Pcr ◽  
Molecular Events ◽  
On The Road

ObjectiveChromosomal rearrangements of theRETproto-oncogene is one of the most common molecular events in papillary thyroid carcinoma (PTC). However, their pathogenic role and clinical significance are still debated. This study aimed to investigate the prevalence of RET/PTC rearrangement in a cohort ofBRAFWT PTCs by fluorescencein situhybridization (FISH) and to search a reliable cut-off level in order to distinguish clonal or non-clonal RET changes.DesignFortyBRAFWT PTCs were analyzed by FISH for RET rearrangements. As controls, sixBRAFV600E mutated PTCs, 13 follicular adenomas (FA), and ten normal thyroid parenchyma were also analyzed.MethodsWe performed FISH analysis on formalin-fixed, paraffin-embedded tissue using a commercially available RET break–apart probe. A cut-off level equivalent to 10.2% of aberrant cells was accepted as significant. To validate FISH results, we analyzed the study cohort by qRT-PCR.ResultsSplit RET signals above the cut-off level were observed in 25% (10/40) of PTCs, harboring a percentage of positive cells ranging from 12 to 50%, and in one spontaneous FA (1/13, 7.7%). Overall, the data obtained by FISH matched well with qRT-PCR results. Challenging findings were observed in five cases showing a frequency of rearrangement very close to the cut-off.ConclusionsFISH approach represents a powerful tool to estimate the ratio between broken and non-broken RET tumor cells. Establishing a precise FISH cut-off may be useful in the interpretation of the presence of RET rearrangement, primarily when this strategy is used for cytological evaluation or for targeted therapy.

scholarly journals Association between Thyroiditis and Multifocality in Papillary Thyroid Carcinoma

2020 ◽  
Author(s):  
Rogério Aparecido Dedivitis ◽  
Leandro Luongo de Matos ◽  
Felipe Guilherme Silva Souza ◽  
Jose Luis Bogado Ortiz
Keyword(s):  
Retrospective Study ◽  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Total Thyroidectomy ◽  
Direct Relationship ◽  
Statistical Significance ◽  
Hashimoto Thyroiditis ◽  
Papillary Thyroid ◽  
Multifocal Lesions ◽  
The Relationship

Abstract Introduction Hashimoto thyroiditis (HT) shares many characteristics with papillary thyroid carcinoma (PTC), and some studies show that, when associated, PTC is diagnosed mostly with smaller lesions and multifocal pattern. Objective To evaluate the relationship between HT and PTC. Methods A retrospective study of 155 patients who underwent total thyroidectomy from 2009 to 2015. Demographical, clinical and ultrasonographical data, as well as anatomopathological findings were evaluated. Results There were signs of thyroidits in 35 patients, and 114 patients had a unifocal disease. There was no statistical significance between the variables studied and thyroiditis. However, when compared with the occurrence of unifocal or multifocal lesions, there was statistical significance regarding age (p = 0.038) and mass (p = 0.031). There was no direct relationship between thyroiditis and multifocality (p = 0.325) nor between thyroiditis and cervical extension of the disease (p = 0.300 e p = 0.434). Conclusion There was no relationship between thyroiditis and multifocality in cases of PTC.

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