Thyroid malignancy concurrent with hyperthyroidism: variations with thyroid status and age

2015 ◽  
Author(s):  
Nadeesha Nawarathna ◽  
Navam Kumarasinghe ◽  
Deepthika Chandrasekara ◽  
Shamali Balasooriya ◽  
Aruna Shaminda ◽  
...  
Keyword(s):  
Thyroid Malignancy ◽  
Thyroid Status

Molecular genetic markers for thyroid FNAB

2015 ◽  
Vol 54 (03) ◽  
pp. 94-100 ◽  
Author(s):  
P. B. Musholt ◽  
T. J. Musholt
Keyword(s):  
Genetic Markers ◽  
Thyroid Nodules ◽  
Molecular Genetic ◽  
Genetic Alterations ◽  
Diagnostic Tools ◽  
Ultrasound Screening ◽  
Thyroid Malignancy ◽  
Thyroid Carcinomas ◽  
Molecular Genetic Markers ◽  
The Impact

SummaryAim: Thyroid nodules > 1 cm are observed in about 12% of unselected adult employees aged 18–65 years screened by ultrasound scan (40). While intensive ultrasound screening leads to early detection of thyroid diseases, the determination of benign or malignant behaviour remains uncertain and may trigger anxieties in many patients and their physicians. A considerable number of thyroid resections are consecutively performed due to suspicion of malignancy in the detected nodes. Fine needle aspiration biopsy (FNAB) has been recommended for the assessment of thyroid nodules to facilitate detection of thyroid carcinomas but also to rule out malignancy and thereby avoid unnecessary thyroid resections. However, cytology results are dependent on experience of the respective cytologist and unfortunately inconclusive in many cases. Methods: Molecular genetic markers are already used nowadays to enhance sensitivity and specificity of FNAB cytology in some centers in Germany. The most clinically relevant molecular genetic markers as pre-operative diagnostic tools and the clinical implications for the intraoperative and postoperative management were reviewed. Results: Molecular genetic markers predominantly focus on the preoperative detection of thyroid malignancies rather than the exclusion of thyroid carcinomas. While some centers routinely assess FNABs, other centers concentrate on FNABs with cytology results of follicular neoplasia or suspicion of thyroid carcinoma. Predominantly mutations of BRAF, RET/PTC, RAS, and PAX8/PPARγ or expression of miRNAs are analyzed. However, only the detection of BRAF mutations predicts the presence of (papillary) thyroid malignancy with almost 98% probability, indicating necessity of oncologic thyroid resections irrespective of the cytology result. Other genetic alterations are associated with thyroid malignancy with varying frequency and achieve less impact on the clinical management. Conclusion: Molecular genetic analysis of FNABs is increasingly performed in Germany. Standardization, quality controls, and validation of various methods need to be implemented in the near future to be able to compare the results. With increasing knowledge about the impact of genetic alterations on the prognosis of thyroid carcinomas, recommendations have to be defined that may lead to individually optimized treatment strategies.

EVALUATION OF A SIMPLIFIED METHOD FOR DETERMINING SERUM THYROXINE BY COMPETITIVE PROTEIN BINDING ANALYSIS

1970 ◽  
Vol 64 (4) ◽  
pp. 630-636 ◽  
Author(s):  
Stephen C. Thorson ◽  
Ronald Tsujikawa ◽  
James L. Brown ◽  
Robert T. Morrison ◽  
Hamish W. McIntosh
Keyword(s):  
Protein Binding ◽  
Clinical Application ◽  
Thyroid Status ◽  
Serum Thyroxine ◽  
Binding Analysis ◽  
Simplified Method ◽  
Competitive Protein Binding ◽  
Hypothyroid Patients

ABSTRACT Serum thyroxine concentrations were determined in 66 euthyroid, 30 hyperthyroid and 13 hypothyroid patients using both the established Murphy method and a simplified method of competitive protein binding analysis. A diagnosis compatibility of 96% was found with both methods indicating that the simplified method has comparable clinical application as an initial screen of thyroid status.

Incidental thyroid malignancy in Grave's thyrotoxicosis

2015 ◽  
Author(s):  
Nazia Rashid ◽  
Tom Kurzawinski ◽  
Teng-Teng Chung
Keyword(s):  
Thyroid Malignancy

QUALITY ASSESSMENT OF CORRECTION THYROID STATUS AND LIPID PROFILE IN PATIENTS WITH HYPOTHYROIDISM

2017 ◽  
Vol 19 (6) ◽  
pp. 75-78
Author(s):  
Е.I. Yamashkinа ◽  
◽  
Yu.V. Yamashkin ◽  
M.V. Esina ◽  
O.N. Efremova ◽  
...  
Keyword(s):  
Quality Assessment ◽  
Lipid Profile ◽  
Thyroid Status

Features of the thyroid status in patients receiving programmed hemodialysis

2020 ◽  
Vol 24 (4) ◽  
pp. 61-66
Author(s):  
V. A. Kovalevskiy ◽  
A. N. Shishkin
Keyword(s):  
Endocrine System ◽  
Hemodialysis Patients ◽  
Thyroid Status ◽  
Average Value ◽  
Urgent Task ◽  
Ckd Stage ◽  
Group 3 ◽  
Group 2 ◽  
And Gender ◽  
People Group

INTRODUCTION. In patients with CKD stage 5 receiving hemodialysis as the main method of renal replacement therapy (RRT), the endocrine system organs, including the thyroid gland, are affected over time. The study of changes in the thyroid status is an urgent task. AIM OF STUDY. Study of functional and gender characteristics of the thyroid status, depending on the duration of patients stay on hemodialysis. PATIENTS AND METHODS. The thyroid status was measured in 108 patients (44 women and 64 men, average age 51.7±15.4 years) undergoing hemodialysis. Patients were divided into quartiles according to the duration of stay on the RRT: group 1 4 – 25 months (28 people), group 2 41 – 59 months (26 people), group 3 68 – 97 months (26 people) and the fourth more than 100 months (28 people). We performed correlation analysis and comparison between groups on the level of free T 4, TSH, the ratio of fT4 to TSH. RESULTS. The average value of fT4 was 11.95±2.07 pmol / ml and TSH 1.5± 0.94 mcME/ml. Significant differences in thyroid status were obtained between the first and second groups in terms of TSH level and ratio fT 4 to TSH (P<0.01) – the level of TSH in the second group is higher (0.74 to 2.1 mсME/ml) and the ratio of fT4 to TSH is lower (13.09 to 4.91). In total, thyroid dysfunction was detected in 20.3% of the examined patients. CONCLUSION. Thus, deviations in the thyroid status occur after 2 years of being on RRT by hemodialysis. In patients who have been on RRT for more than 5 years, the thyroid status stabilizes. The reasons for this phenomenon are completely incomprehensible.

scholarly journals Control of Graves’ hyperthyroidism with very long-term methimazole treatment: a clinical trial

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Fereidoun Azizi ◽  
Hengameh Abdi ◽  
Atieh Amouzegar
Keyword(s):  
Low Dose ◽  
Reference Range ◽  
Antithyroid Drug ◽  
Therapeutic Modality ◽  
Thyroid Status ◽  
Antithyroid Drug Therapy ◽  
Daily Dose ◽  
Prevention Of Relapse

Abstract Background Long-term antithyroid drug therapy has become one of the options for treatment of Graves’ hyperthyroidism. The aim of this study was to compare thyroid status in those who discontinued methimazole (MMI) treatment after 12.8 years with those who continued MMI as long as 24 years. Methods Fifty nine patients with Graves’ disease on long-term MMI for 14.2 ± 2.9 years were recruited; 32 patients (54%) decided to discontinue MMI and 27 (46%) preferred additional years of MMI treatment. All patients were followed for a mean of 6 additional years. Results Of 27 patients who continued MMI up to 24 years, suppressed serum thyrotropin (TSH) was not observed in any patient after the seventh year of treatment. Serum free thyroxine, triiodothyronine, TSH and TSH receptor antibody concentrations remained normal up to the length of the study. Mean daily dose of MMI to maintain TSH in the reference range decreased gradually and reached to 2.8 ± 1.7 mg by 24 years of MMI treatment. No adverse reaction related to MMI occured during additional years of therapy. In 32 patients who discontinued MMI, hyperthyroidism relapsed in 6 patients (19%), one left follow-up and 25 (78%) remained euthyroid during the study. Conclusions Long-term low dose MMI treatment may be a lifelong effective and safe therapeutic modality in patients with Graves’ hyperthyroidism for prevention of relapse, if studies from other centers confirm findings of this research. Trial registration IRCT201009224794N1, 2010-10-25. Retrospectively registered. https://www.irct.ir/trial/5143.

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