scholarly journals Preoperative serum thyroglobulin levels as a predictor of thyroid carcinoma

2020 ◽  
Vol 7 (2) ◽  
pp. 429
Author(s):  
Mir Mohammed Noorul Hassan ◽  
Prakash S. Kattimani ◽  
Aeiman Saniya

Background: Incidence of thyroid nodules varies according to the methods of diagnosis, 4-7% by palpation and 17-67% by high resolution ultrasound. The gold standard of diagnosis for thyroid nodules is fine needle aspiration (FNA); however, fine needle aspiration cytology (FNAC) alone is insufficient to detect cancer because of inadequate cytology (5-15%) and in cases of follicular neoplasm (15-25%) where only surgery is diagnostically conclusive. Therefore, other factors in addition to FNA should be considered to predict malignancy. This study was done to evaluate the association between elevated pre-operative thyroglobulin levels and histopathologically proven thyroid carcinoma.Methods: This retrospective study was conducted in Bowring and Lady Curzon Hospital, from December 2017 to November 2018. All patients above 18 years, undergoing total thyroidectomy, with normal antithyroglobulin levels and with indeterminate thyroid nodules or disease on FNAC were included. Patients proven to have malignancy by FNAC, who underwent hemithyroidectomy and patients with thyroglossal cyst or ectopic thyroid swellings were excluded.Results: A total of 50 patients were included. The Fischer’s exact test shows significant value of 0.037 and also the two-tailed test showed a p value <0.05, hence it is significant to conclude that the mean value of thyroglobulin levels among histopathologically proven malignant thyroid cancers is significantly higher compared to the benign thyroid disease.Conclusions: In addition to thyroid-stimulating hormone, thyroid nodules with elevated thyroglobulin levels were independently associated with the presence of thyroid cancer; therefore, the evaluation of pre-operative thyroglobulin level in patients with indeterminate FNAC might give additional information to predict malignancy.

1992 ◽  
Vol 126 (3) ◽  
pp. 233-237 ◽  
Author(s):  
Boonsong Ongphiphadhanakul ◽  
Rajata Rajatanavin ◽  
Surtrong Chiemchanya ◽  
La-or Chailurkit ◽  
Atana Kongsuksai ◽  
...  

In this study, we identified clinical and laboratory markers of malignant thyroid nodules and determined whether systematic inclusion of these data could improve diagnostic accuracy of fine-needle aspiration biopsy in solitary thyroid nodules. The patients were 24 men and 105 women who underwent surgical removal of solitary thyroid nodules and had adequate fine-needle aspiration biopsy performed prior to surgery. Including fine-needle aspiration biopsy's diagnosis of suspected of malignancy in the same category as malignancy, the sensitivity and specificity of fine-needle aspiration biopsy were 71.4% and 85.1%, respectively, with an accuracy of 82.2%. Using stepwise linear regression analysis, clinical data, i.e. increasing age, irregular nodule surface, hard consistency of nodule, and high serum thyroglobulin concentration, were associated with an increased risk of malignancy when the cytological result was excluded. When cytology was also considered, male sex, irregular nodule surface and high serum thyroglobulin concentration were found to be associated with an increased risk of malignancy. The diagnostic value of clinical data alone, even in combination with cytology or laboratory data, was inferior to that of fine-needle aspiration biopsy alone. The specificity and accuracy of fine-needle aspiration biopsy could be increased to 98.0% and 90.7%, respectively, whereas its sensitivity was decreased to 64.3% when these variables were considered in combination. Therefore, of fine-needle aspiration biopsy, clinical and laboratory data, fine-needle aspiration biopsy alone has the highest diagnostic value, which can be increased only when both clinical characteristics and serum thyroglobulin concentration are systematically included.


Head & Neck ◽  
2014 ◽  
Vol 37 (4) ◽  
pp. 498-504 ◽  
Author(s):  
Ji Soo Choi ◽  
Chung Mo Nam ◽  
Eun-Kyung Kim ◽  
Hee Jung Moon ◽  
Kyung Hwa Han ◽  
...  

Author(s):  
A. V. Pomortsev ◽  
O. S. Tokarenko

Background. Over the last 15 years, there have been many recommendations for the management of patients with thyroid nodules, based on the assessment of various ultrasound (US) criteria in B-mode. In 2020, the EUTIRADS system (2017) was included in Russian Clinical Practice Guidelines. Shear wave elastography (SWE) increases the diagnostic efficacy of ultrasonic B-mode examination of thyroid nodules and can be recommended for inclusion in the existing classification system. Objective. To assess the diagnostic efficacy of multiparametric US combining SWE and color flow mapping in differentiating between benign and malignant thyroid nodules to define their stage according to the EUTIRADS system for deciding on the need for fine-needle aspiration biopsy. Material and methods. A total of 150 thyroid nodules from 116 patients were analyzed. Lesions were then classified according to the EU-TIRADS system, SWE with an assessment of the color map and tissue stiffness was performed (Emean). In all tumors, cytological and histological (in operated patients) verification was carried out. Results. After B-mode US with color flow mapping, differentiation of palpable thyroid abnormalities by the EUTIRADS system was carried out. 78 nodules were classified as EU-TIRADS 2 (52%), 42 – EU-TIRADS 3 (28%), 26 – EU-TIRADS 4 (17.3%), 4 – EU-TIRADS 5 (2.7%). On cytological examination 42 tumor nodules were detected. Of these, 6 (14.3%) cases were reported as papillary thyroid carcinoma, 36 (85.7%) as follicular neoplasm, 22 (61%) among the last prove to be follicular carcinoma. Qualitative and quantitative evaluation of elastograms was performed. Benign nodules were colored primarily in blue, while suspicious for malignancy revealed red areas of different size. Elasticity index in benign nodules was 24.3 ± 5.63 kPa for colloid goiter, 27.8 ± 6.35 kPa for cellular goiter; in suspicious for malignancy – 80.9 ± 50.9 kPa for follicular neoplasm, 114 ± 56.8 kPa – for papillary thyroid cancer. The stiffness cutoff value for malignancy indicated with ROC-analysis was estimated as 45.4 kPa. Mean elasticity index (kPa) was significantly higher in suspicious for malignancy nodules than in benign nodules (р < 0.05). Of 120 (80%) nodules, primarily assessed as benign and defined as EU-TIRADS 2 and 3, 18 (12%) nodules after SWE revealed areas of high stiffness exceeding the cutoff value. After that, these nodules were transferred to EU-TIRADS 4 and 5, and these stages require fine-needle aspiration. Of these, 11 (7.3%) cases were reported as follicular neoplasm, 6 (4%) among the last prove to be follicular thyroid carcinoma. Conclusion. Using multiparametric approach with SWE will give the opportunity to classify correctly the nodule according to the EU-TIRADS and to identify greater number of thyroid tumors for fine-needle aspiration. SWE made it possible to increase the specificity of US using the EU-TIRADS system. The characteristics of the SWE score were: sensitivity = 81%, specificity = 90.3%, positive predictive value = 88%, negative predictive value = 91%, and accuracy of comprehensive study = 88.4%.


2006 ◽  
Vol 12 (3) ◽  
pp. 264-269 ◽  
Author(s):  
Rafael Luboshitzky ◽  
Idit Lavi ◽  
Avraham Ishay

Cancers ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3544
Author(s):  
David N. Poller ◽  
Hakim Megadmi ◽  
Matthew J. A. Ward ◽  
Pierpaolo Trimboli

This study assesses the role of [18F] FDG PET/CT, fine needle aspiration (FNA) cytology and ultrasound in the 1–2% of patients with focally positive thyroid nodules on FDG PET/CT. All FDG PET/CT scans with focally increased thyroid FDG PET/CT uptake performed over 37 months in one institution were matched to patients undergoing thyroid FNA. Diffuse FDG PET/CT uptake patients were excluded. A total of 47 patients showed focally increased thyroid uptake. Consistent with previous studies, 18 (38.2%) patients had malignancy—12 primary thyroid carcinoma, 1 parathyroid carcinoma, 3 metastatic carcinoma to the thyroid and 2 lymphoma. A total of 15 (31.9%) lesions categorized as non-malignant contained Hürthle cells/oncocytes. A total of 14 lesions (29.8%) had focally increased FDG PET/CT uptake with no specific cytological or histopathological cause identified. No focally PET avid Hürthle cell/oncocytic lesions were found to be malignant. Exclusion of oncocytic lesions increased the calculated risk of malignancy (ROM) of focally PET avid nodules from 38% to 68%. It may be useful to exclude focally FDG PET/CT avid Hürthle cell/oncocytic lesions, typically reported as follicular neoplasm or suspicious for a follicular neoplasm, Hürthle cell type (Oncocytic) type, RCPath Thy 3F: Bethesda IV or sometimes Thy 3a: Bethesda III FNAs) from ROM calculations. Oncocytic focally PET/CT FDG avid lesions appear of comparatively lower risk of malignancy and require investigation or operation but these lesions should be readily identified by FNA cytology on diagnostic work up of focally PET avid thyroid nodules.


2008 ◽  
Vol 93 (11) ◽  
pp. 4175-4182 ◽  
Author(s):  
Erik K. Alexander

Background: Fine-needle aspiration remains the primary diagnostic intervention for the evaluation of most thyroid nodules larger than 1–1.5 cm. Although most aspirates provide diagnostic cytology, approximately 15–25% will be classified indeterminate (often referred to as follicular neoplasm, suspicious for carcinoma, or atypical). In such cases, abnormal cellular findings preclude interpretation of benignity, although only a minority will prove cancerous upon final histopathology. Nonetheless, patients with indeterminate aspirates are commonly referred for consideration of hemi- or near-total thyroidectomy. Recently, improved understanding and novel investigation of clinical, radiological, cytological, and molecular factors has allowed improved stratification of cancer risk. Conclusion: Although surgery continues to be commonly recommended, strategies for such patients should increasingly seek to define treatment based on the estimation of an individual’s thyroid cancer risk in comparison with associated operative risk and morbidity. In doing so, the rate of unnecessary surgical procedures and associated complications can be reduced.


2001 ◽  
Vol 125 (4) ◽  
pp. 484-488 ◽  
Author(s):  
Mojghan Amrikachi ◽  
Ibrahim Ramzy ◽  
Sheldon Rubenfeld ◽  
Thomas M. Wheeler

Abstract Context.—Fine-needle aspiration has become an accepted and cost-effective procedure for rapid diagnosis of thyroid lesions. The routine use of fine-needle aspiration has reduced the rate of unnecessary surgery for thyroid nodules. Objectives.—To determine the accuracy of fine-needle aspiration biopsy diagnosis and to discuss the possible pitfalls. Design, Setting, and Participants.—Reports of 6226 fine-needle aspiration biopsies of the thyroid performed during a period of 16 years (1982–1998) were reviewed. Computerized reports of the fine-needle aspiration biopsies were sent to the physicians who performed the procedures, and clinical follow-up information regarding the patients was requested. Twenty-four clinicians participated in the study. Histologic diagnoses were available for 354 cases. The cytopathologic diagnoses were correlated with the histologic findings or clinical outcomes. Results.—The cytologic diagnoses were as follows: 210 (3.4%) malignant, 450 (7.2%) suspicious, 3731 (60%) benign, and 1845 (29.5%) unsatisfactory. Most of the cases with negative or unsatisfactory aspirates were followed clinically or by repeat fine-needle aspiration. We identified 11 false-negative and 7 false-positive diagnoses. For aspirates considered sufficient for diagnosis, the sensitivity and specificity levels were 93% and 96%, respectively. Conclusions.—Fine-needle aspiration of the thyroid gland is highly accurate and has a low rate of false-negative and false-positive diagnoses. The major diagnostic problems are caused by diagnosis using a marginally adequate specimen, diagnosis of malignancy based on just 1 or 2 atypical cytologic features, or overlapping cytologic features of follicular neoplasm with those of follicular variant of papillary carcinoma.


2021 ◽  
Vol 12 ◽  
Author(s):  
Jianhao Huang ◽  
Hongyan Shi ◽  
Muye Song ◽  
Jinan Liang ◽  
Zhiyuan Zhang ◽  
...  

BackgroundThyroid nodules are a very common finding in the general population. Fine-needle aspiration (FNA) has been recommended as the initial test for the evaluation of thyroid nodules. The trend on reporting as atypia of undetermined significance (AUS) has been significantly increased, but the malignant risk is still controversial among different studies. The aim of this study is to investigate the malignancy risk of thyroid nodules reported as Bethesda category III (AUS/FLUS) on initial FNA.MethodWe reviewed 272 papillary thyroid cancer (PTC) patients with suspicious thyroid nodules who underwent fine-needle aspiration and received surgical treatment during 2019 to 2020.ResultsOne hundred ten (40.4%) patients were diagnosed with PTC. Multivariate analysis showed that microcalcification (p = 0.037, OR = 2.260, 95% CI: 1.051–4.860), shape (p = 0.003, OR = 4.367, 95% CI: 1.629–11.705), diameters (p = 0.002, OR = 0.278, 95% CI: 0.123–0.631), anti-thyroglobulin antibodies (TGAb) (p = 0.002, OR = 0.150, 95% CI: 0.046–0.494), anti-thyroid peroxidase antibody (A-TPO) (p = 0.009, OR = 4.784, 95% CI: 1.486–15.401), and nodule goiter (p &lt; 0.001, OR = 0.100, 95% CI: 0.046–0.217) were independent malignant risk factors in patients with thyroid nodule classified as Bethesda category III.ConclusionIn this study, malignant risk factors in patients with thyroid nodule classified as Bethesda category III were significantly associated with preoperative serum TGAb, A-TPO, microcalcification, irregular shape, and nodule diameters. Nodules with malignant factors should be carefully elevated; surgery may be the better option for those patients.


PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0247807
Author(s):  
Suhail Al-Salam ◽  
Charu Sharma ◽  
Maysam T. Abu Sa’a ◽  
Bachar Afandi ◽  
Khaled M. Aldahmani ◽  
...  

Background Thyroid nodules are a common clinical finding and most are benign, however, 5–15% can be malignant. There is limited regional data describing the accuracy of ultrasound-guided fine needle aspiration (FNA) cytological examination compared to ultrasound examination of thyroid in patients who have undergone thyroid surgery. Methods A retrospective analysis of ultrasonographic (US) reports, FNA cytology reports and histopathology reports of 161 thyroid nodules presented at the endocrine center at Tawam hospital in Al Ain city, the United Arab Emirates during the period 2011–2019 was performed. US reports and images with FNA cytopathology reports and slides were reviewed by an independent radiologist and pathologist. Results In total, 40 nodules were reported as benign by US examination, while very low suspicious, low suspicious, intermediate suspicious and highly suspicious categories were reported in 21, 41, 14 and 45 nodules respectively. In addition, 68 nodules were reported as benign (Bethesda category II), while atypical follicular cells of unknown significance (Bethesda category III), follicular neoplasm (Bethesda category IV), suspicious for malignancy (Bethesda category V), and malignant (Bethesda category VI) categories were reported in 33, 9, 24 and 27 nodules respectively. The risk of malignancy for US benign nodules was 5%, while the risks of malignancy in very low suspicious, low suspicious, intermediate suspicious and highly suspicious nodules were 52%, 36%, 100% and 87%, respectively. The risk of malignancy for Bethesda category II was 3%, while the risks of malignancy in category III, IV, V and VI were 58%, 67%, 96% and 100%, respectively. Conclusion Thyroid FNA cytological examination and ultrasonography are key tools in predicting malignancy in thyroid nodules. Thyroid nodules with the diagnosis of Bethesda category III & IV run a high risk of malignancy thus more vigilance is required.


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