Displaying publications 21 - 40 of 126 in total

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  1. Sundram F
    Biomed Imaging Interv J, 2006 Oct;2(4):e56.
    PMID: 21614336 MyJurnal DOI: 10.2349/biij.2.4.e56
    The incidence of thyroid cancer is low, but when it occurs, it is mainly of the papillary histopathological type. Although PET/CT has a limited role in the diagnosis, it plays a significant role in the overall post-surgery management of a patient with thyroid cancer. This follow-up role is important, especially in patients with elevated serum thyroglobulin, but negative radioiodine whole body scans. There is increasing evidence that PET/CT should be a part of routine care in the Tg positive Radioiodine scan negative patient.
    Matched MeSH terms: Thyroid Neoplasms
  2. Gopinath SCB, Xuan S
    Biotechnol Appl Biochem, 2021 Jun;68(3):554-559.
    PMID: 32460382 DOI: 10.1002/bab.1961
    One of the current issues with thyroid tumor is early diagnosis as it makes the higher possibility of curing. This research was focused to detect and quantify the level of specific target sequence complementation of miR-222 with capture DNA sequence on interdigitated electrode (IDE) sensor. The aluminum electrode with the gap and finger sizes of 10 µm was fabricated on silicon wafer, further the surface was amine-functionalized for accommodating carboxylated-DNA probe. With DNA-target RNA complementation, the detection limit was attained to be 1 fM as estimated by a linear regression analysis [y = 1.5325x - 2.1171 R² = 0.9065] and the sensitivity was at the similar level. Current responses were higher by increasing the target RNA sequence concentrations. Control experiments with mismatched/noncomplementary sequences were failed to complement the capture DNA sequence immobilized on IDE, indicating the specific target validation. This research helps diagnosing and identifying the progression with thyroid tumor and miRNA being a potential "marker" in atypia diagnosis.
    Matched MeSH terms: Thyroid Neoplasms/diagnosis*; Thyroid Neoplasms/genetics
  3. Sen A, Tsilidis KK, Allen NE, Rinaldi S, Appleby PN, Almquist M, et al.
    Br J Cancer, 2015 Sep 01;113(5):840-7.
    PMID: 26313664 DOI: 10.1038/bjc.2015.280
    BACKGROUND: Results from several cohort and case-control studies suggest a protective association between current alcohol intake and risk of thyroid carcinoma, but the epidemiological evidence is not completely consistent and several questions remain unanswered.

    METHODS: The association between alcohol consumption at recruitment and over the lifetime and risk of differentiated thyroid carcinoma was examined in the European Prospective Investigation into Cancer and Nutrition. Among 477 263 eligible participants (70% women), 556 (90% women) were diagnosed with differentiated thyroid carcinoma over a mean follow-up of 11 years. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using multivariable Cox proportional hazards models.

    RESULTS: Compared with participants consuming 0.1-4.9 g of alcohol per day at recruitment, participants consuming 15 or more grams (approximately 1-1.5 drinks) had a 23% lower risk of differentiated thyroid carcinoma (HR=0.77; 95% CI=0.60-0.98). These findings did not differ greatly when analyses were conducted for lifetime alcohol consumption, although the risk estimates were attenuated and not statistically significant anymore. Similar results were observed by type of alcoholic beverage, by differentiated thyroid carcinoma histology or according to age, sex, smoking status, body mass index and diabetes.

    CONCLUSIONS: Our study provides some support to the hypothesis that moderate alcohol consumption may be associated with a lower risk of papillary and follicular thyroid carcinomas.

    Matched MeSH terms: Thyroid Neoplasms/etiology*; Thyroid Neoplasms/epidemiology
  4. Chia WK, Sharifah NA, Reena RM, Zubaidah Z, Clarence-Ko CH, Rohaizak M, et al.
    Cancer Genet. Cytogenet., 2010 Jan 1;196(1):7-13.
    PMID: 19963130 DOI: 10.1016/j.cancergencyto.2009.08.001
    At the present time, the differentiation between follicular thyroid carcinoma (FTC) and adenoma can be made only postoperatively and is based on the presence of capsular or vascular invasion. The ability to differentiate preoperatively between the malignant and benign forms of follicular thyroid tumors assumes greater importance in any clinical setting. The PAX8-PPARG translocation has been reported to occur in the majority of FTC. In this study, a group of 60 follicular thyroid neoplasms [18 FTC, 1 Hurthle cell carcinoma (HCC), 24 follicular thyroid adenomas (FTA), 5 Hurthle cell adenomas (HCA), and 12 follicular variants of papillary thyroid carcinomas (FV-PTC)] were analyzed to determine the prevalence of the PAX8-PPARG translocation by fluorescence in situ hybridization. The PAX8-PPARG translocation was detected in 2/18 FTC (11.1%). In addition, 2/18 (11.1%) FTC and 1/5 (20%) HCA showed 3p25 aneusomy only. The frequency of the translocation detected in the study was lower compared to the earlier studies conducted in Western countries. This might be attributed to the ethnic background and geographic location. Detection of either the PAX8-PPARG translocation or the 3p25 aneusomy in FTC indicates that these are independent genetic events. It is hereby concluded that 3p25 aneusomy or PAX8-PPARG translocation may play an important role in the molecular pathogenesis of follicular thyroid tumors.
    Matched MeSH terms: Thyroid Neoplasms/genetics*
  5. Jayapalan JJ, Lee CS, Lee CC, Ng KL, Junit SM, Hashim OH
    Clin Biochem, 2018 Mar;53:127-131.
    PMID: 29355489 DOI: 10.1016/j.clinbiochem.2018.01.008
    BACKGROUND: Benign thyroid goiter (BTG) and papillary thyroid carcinoma (PTC) are often interchangeably misdiagnosed.

    METHODS: Pooled urine samples of patients with BTG (n=10), patients with PTC (n=9) and healthy controls (n=10) were subjected to iTRAQ analysis and immunoblotting.

    RESULTS: The ITRAQ analysis of the urine samples detected 646 proteins, 18 of which showed significant altered levels (p<0.01; fold-change>1.5) between patients and controls. Whilst four urinary proteins were commonly altered in both BTG and PTC patients, 14 were unique to either BTG or PTC. Amongst these, four proteins were further chosen for validation using immunoblotting, and the enhanced levels of osteopontin in BTG patients and increased levels of a truncated gelsolin fragment in PTC patients, relative to controls, appeared to corroborate the findings of the iTRAQ analysis.

    CONCLUSION: The data of the present study is suggestive of the potential application of urinary osteopontin and gelsolin to discriminate patients with BTG from those with PTC non-invasively. However, this needs to be further validated in studies of individual urine samples.

    Matched MeSH terms: Thyroid Neoplasms/urine*
  6. Achuthan A, Rajeswari M, Ramachandram D, Aziz ME, Shuaib IL
    Comput Biol Med, 2010 Jul;40(7):608-20.
    PMID: 20541182 DOI: 10.1016/j.compbiomed.2010.04.005
    This paper introduces an approach to perform segmentation of regions in computed tomography (CT) images that exhibit intra-region intensity variations and at the same time have similar intensity distributions with surrounding/adjacent regions. In this work, we adapt a feature computed from wavelet transform called wavelet energy to represent the region information. The wavelet energy is embedded into a level set model to formulate the segmentation model called wavelet energy-guided level set-based active contour (WELSAC). The WELSAC model is evaluated using several synthetic and CT images focusing on tumour cases, which contain regions demonstrating the characteristics of intra-region intensity variations and having high similarity in intensity distributions with the adjacent regions. The obtained results show that the proposed WELSAC model is able to segment regions of interest in close correspondence with the manual delineation provided by the medical experts and to provide a solution for tumour detection.
    Matched MeSH terms: Thyroid Neoplasms/pathology; Thyroid Neoplasms/radiography
  7. Jayaram G
    Diagn Cytopathol, 2000 Apr;22(4):227-9.
    PMID: 10787142
    Columnar cell variant of papillary carcinoma (CCV-PC) thyroid is a rare and aggressive tumor composed of tall columnar cells that form papillae, glands and solid structures. This paper describes fine needle aspiration (FNA) cytologic features in a case of CCV-PC occurring in the right thyroid lobe of a 27-year-old female. Smears showed tall columnar cells in monolayered, three-dimensional, acinar and occasional papillary clusters. Nuclei were oval or elongated and monomorphic. Nuclear pseudostratification, resembling that seen in respiratory epithelial cells, was present in some of the cell clusters. Occasional cells showed squamous or Hurthle cell metaplasia. Nuclear grooves and intranuclear cytoplasmic inclusions were not seen. Sections of the right lobectomy specimen showed an well-encapsulated CCV-PC with capsular and vascular permeation. Tall cell variant of papillary carcinoma (TCV-PC) can be distinguished from CCV-PC by the oxyphilia of the tumor cells and the absence of nuclear pseudostratification. Colorectal and endometrial adenocarcinomas metastatic to the thyroid may be difficult to distinguish from CCV-PC.
    Matched MeSH terms: Thyroid Neoplasms/pathology*; Thyroid Neoplasms/surgery
  8. Khaw B, Sivalingam S, Pathamanathan SS, Tan TS, Naicker M
    Ear Nose Throat J, 2014 12;93(12):508-11.
    PMID: 25531844
    Approximately 25% of all cases of extranodal non-Hodgkin lymphoma (NHL) occur in the head and neck region; NHL of the external auditory canal (EAC) and thyroid gland are rare. Specific immunohistochemical staining of the excised tissue is required to confirm the final pathologic diagnosis. We report the case of a 53-year-old woman with underlying systemic lupus erythematosus and autoimmune hemolytic anemia that were in remission. She presented with chronic left ear pain, a mass in the left EAC, and rapid growth of an anterior neck swelling that had led to left vocal fold palsy. High-resolution computed tomography (CT) of the temporal bone and CT of the neck detected a mass lateral to the left tympanic membrane and another mass in the anterior neck that had infiltrated the thyroid gland. The patient was diagnosed with simultaneous B-cell lymphoma of the left EAC and thyroid gland. She was treated with chemotherapy. She responded well to treatment and was lost to follow-up after 1 year. To the best of our knowledge, the simultaneous occurrence of a lymphoma in the EAC and the thyroid has not been previously described in the literature.
    Matched MeSH terms: Thyroid Neoplasms/diagnosis*; Thyroid Neoplasms/therapy
  9. Ni H, Htet A
    PMID: 23074376 DOI: 10.3332/ecancer.2012.274
    Myasthenia gravis (MG) is an autoantibody-mediated disorder affecting the neuromuscular junction causing characteristic fatigable muscle weakness. Though it can be associated with tumours of the thymus as well as thyroid disorders, it is rare for both to coexist. The exact prevalence of thyroid carcinoma in MG with thymoma is not known but only about a dozen cases have been reported in the literature. We report a case of a 38-year-old Myanmar lady who presented with weakness and breathlessness due to MG with neck swelling. On examination, she had fatigable proximal muscle weakness and thyroid enlargement with no obvious features of hyperthyroidism. Mediastinal widening and an enlarged thyroid gland were noted on her chest X-ray and chest CT. A subtotal thyroidectomy and thymectomy were done. The histology showed follicular carcinoma of the thyroid and benign thymoma. The majority of the reported cases of thyroid carcinoma in association with MG were papillary carcinoma. Follicular carcinoma thyroid associated with MG has not yet been reported in the literature.
    Matched MeSH terms: Thyroid Neoplasms
  10. Yang SP, Ying LS, Saw S, Tuttle RM, Venkataraman K, Su-Ynn C
    Endocr Pract, 2015 Nov;21(11):1255-68.
    PMID: 26247114 DOI: 10.4158/EP15850.OR
    OBJECTIVE: Numerous published guidelines have described the optimal management of thyroid cancer. However, these rely on the clinical availability of diagnostic and therapeutic modalities. We hypothesized that the availability of medical resources and economic circumstances vary in Asia-Pacific countries, making it difficult to implement guideline recommendations into clinical practice.

    METHODS: We surveyed participants at the 2009 and 2013 Congresses of the Association of Southeast Asian Nations Federation of Endocrine Societies by distributing questionnaires to attendees at registration.

    RESULTS: Responses were obtained from 268 respondents in 2009 and 163 respondents in 2013. Similar to the high prevalence of low-risk thyroid cancer observed in the Surveillance, Epidemiology, and End Results database, across the Asia-Pacific countries surveyed in 2009 and 2013, 50 to 100% of the respondents from the Philippines, Malaysia, Singapore, China, Taiwan, Thailand, Hong Kong, Korea, and Sri Lanka reported that more than 50% of the patients had low-risk thyroid cancer on follow-up. Importantly, there was much variation with regards to the perceived availability of investigation and treatment modalities.

    CONCLUSION: We found a wide variation in clinicians' perception of availability of diagnostic and therapeutic modalities in the face of a rise in thyroid cancer incidence and thyroid cancer management guidelines that emphasized their importance. The lack of availability of management tools and treatments will prove to be a major barrier to the implementation of thyroid cancer management guidelines in Southeast Asia, and likely in other parts of the world as well.

    Matched MeSH terms: Thyroid Neoplasms/diagnosis*; Thyroid Neoplasms/epidemiology; Thyroid Neoplasms/therapy*
  11. Zamora-Ros R, Alghamdi MA, Cayssials V, Franceschi S, Almquist M, Hennings J, et al.
    Eur J Nutr, 2019 Dec;58(8):3303-3312.
    PMID: 30535794 DOI: 10.1007/s00394-018-1874-z
    PURPOSE: Coffee and tea constituents have shown several anti-carcinogenic activities in cellular and animal studies, including against thyroid cancer (TC). However, epidemiological evidence is still limited and inconsistent. Therefore, we aimed to investigate this association in a large prospective study.

    METHODS: The study was conducted in the EPIC (European Prospective Investigation into Cancer and Nutrition) cohort, which included 476,108 adult men and women. Coffee and tea intakes were assessed through validated country-specific dietary questionnaires.

    RESULTS: During a mean follow-up of 14 years, 748 first incident differentiated TC cases (including 601 papillary and 109 follicular TC) were identified. Coffee consumption (per 100 mL/day) was not associated either with total differentiated TC risk (HRcalibrated 1.00, 95% CI 0.97-1.04) or with the risk of TC subtypes. Tea consumption (per 100 mL/day) was not associated with the risk of total differentiated TC (HRcalibrated 0.98, 95% CI 0.95-1.02) and papillary tumor (HRcalibrated 0.99, 95% CI 0.95-1.03), whereas an inverse association was found with follicular tumor risk (HRcalibrated 0.90, 95% CI 0.81-0.99), but this association was based on a sub-analysis with a small number of cancer cases.

    CONCLUSIONS: In this large prospective study, coffee and tea consumptions were not associated with TC risk.

    Matched MeSH terms: Thyroid Neoplasms/epidemiology*
  12. Mohamad Yusof A, Jamal R, Muhammad R, Abdullah Suhaimi SN, Mohamed Rose I, Saidin S, et al.
    PMID: 29713312 DOI: 10.3389/fendo.2018.00158
    The incidence rate of papillary thyroid carcinoma (PTC) has rapidly increased in the recent decades, and the microRNA (miRNA) is one of the potential biomarkers in this cancer. Despite good prognosis, certain features such as lymph node metastasis (LNM) and BRAF V600E mutation are associated with a poor outcome. More than 50% of PTC patients present with LNM and BRAF V600E is the most common mutation identified in this cancer. The molecular mechanisms underlying these features are yet to be elucidated. This study aims to elucidate miRNA-genes interaction networks in PTC with or without LNM and to determine the association of BRAF V600E mutation with miRNAs and genes expression profiles. Next generation sequencing was performed to characterize miRNA and gene expression profiles in 20 fresh frozen tumor and the normal adjacent tissues of PTC with LNM positive (PTC LNM-P) and PTC without LNM (PTC LNN). BRAF V600E was genotyped using Sanger sequencing. Bioinformatics integration and pathway analysis were performed to determine the regulatory networks involved. Based on network analysis, we then investigated the association between miRNA and gene biomarkers, and pathway enrichment analysis was performed to study the role of candidate biomarkers. We identified 138 and 43 significantly deregulated miRNAs (adjusted p value thyroid cancer. These findings may lead to better understanding of carcinogenesis and metastasis processes. This study also complements the existing knowledge about deregulated miRNAs in papillary thyroid carcinoma development.
    Matched MeSH terms: Thyroid Neoplasms
  13. Sathasivam H, Loh YM, Saw CL, Khalid N
    Gerodontology, 2017 Jun;34(2):276-279.
    PMID: 27384017 DOI: 10.1111/ger.12240
    OBJECTIVE: A case of oral metastatic follicular thyroid carcinoma is presented.

    BACKGROUND: Metastatic tumours are more frequent in older individuals and can be the only sign/symptom of an undiagnosed primary malignancy.

    CASE REPORT: A 69-year-old lady presented with an enlarging mandibular swelling. Incisional biopsy and imaging studies were suggestive of metastatic follicular thyroid carcinoma.

    CONCLUSION: Metastatic tumours should be considered in the differential diagnosis of mandibular swellings especially in older individuals.

    Matched MeSH terms: Thyroid Neoplasms
  14. Khoo KS, Koh PS, Ng KL
    Gland Surg, 2020 Dec;9(6):2198-2203.
    PMID: 33447571 DOI: 10.21037/gs-20-474
    Acute suppurative thyroiditis account for <1% of thyroid diseases and is uncommon because of the gland's encapsulation, iodine-rich environment, good vascular supply and extensive lymphatic drainage. It has been reported in patients with underlying goiters, thyroid cancers and in immuno-compromised patients. The usual causative organisms are Staphylococci spp. and Streptococci spp. Rarer organisms include Klebsiella spp. and Salmonella spp. Due to its rarity (as there have been only 28 cases of Salmonella thyroid abscess being reported in the literature till 2020), only case reports are available to guide management. We report two cases of thyroid abscess due to Salmonella enteritidis in our institution that may herald the re-emergence of this uncommon infection of the thyroid gland and to raise awareness for all clinicians. Both patients presented with neck swelling, dysphagia and sepsis. Surgical intervention was warranted in both patients due to the severity of the disease and failed medical therapy. Recovery was uneventful following adequate surgical intervention and antibiotic therapy according to the culture and sensitivity report of the pathogen. This case report highlights that both patients were immunocompromised, and they contracted Salmonella thyroid abscess without any gastrointestinal involvement. Thus, a high index of suspicion for Salmonella thyroid abscess in immunocompromised patients can expedite the diagnosis and appropriate management can be commenced such as antibiotic therapy, percutaneous aspiration and surgical drainage in the event of failed medical therapy.
    Matched MeSH terms: Thyroid Neoplasms
  15. Park JH, Lee J, Hakim NA, Kim HY, Kang SW, Jeong JJ, et al.
    Head Neck, 2015 Dec;37(12):1705-11.
    PMID: 24986508 DOI: 10.1002/hed.23824
    This study assessed the results of robotic thyroidectomy by fellowship-trained surgeons in their initial independent practice, and whether standard fellowship training for robotic surgery shortens the learning curve.
    Matched MeSH terms: Thyroid Neoplasms/pathology; Thyroid Neoplasms/surgery*
  16. Win TT, Othman NH, Mohamad I
    Indian J Pathol Microbiol, 2017 Apr-Jun;60(2):167-171.
    PMID: 28631629 DOI: 10.4103/IJPM.IJPM_457_16
    INTRODUCTION: Poorly differentiated thyroid carcinoma (PDTC) is a rare aggressive malignancy of thyroid follicular cells and has unique features in morphology and behavior. This study was aimed to describe the experience of a tertiary medical center with PDTC within a 10-year period.

    MATERIALS AND METHODS: This is a descriptive retrospective study of eight cases of PDTC among 418 various thyroid carcinomas. All cases of PDTC were retrieved along with the clinicopathological information.

    RESULTS: Only eight cases (1.9%) of PDTC were diagnosed among 418 thyroid carcinomas. Mean age was 48.12 with 3:5 (male:female) and tumor size ranged 3-12 cm. PDTC were diagnosed coexisting with one or more other pathologies; nodular hyperplasia (four cases), papillary carcinoma (one case), follicular carcinoma (three cases), and Hashimoto thyroiditis (two cases); with ≥60% PDTC component. Six cases associated with high-grade features died within 3 years after diagnosis.

    DISCUSSION: Mean age in this study was younger including a 20-year-old girl. Younger age was associated with better prognosis. Most of the cases had underlying benign thyroid lesions and differentiated thyroid carcinoma. Most of the PDTC had poor prognosis associated with PDTC component ≥60%, tumor necrosis, high mitotic count, lymph node involvement, vascular invasion and distant metastasis; and these cases died within 3 years after diagnosis.

    CONCLUSION: Although treatment of PDTC remains surgery followed by radioiodine therapy, correct histopathological diagnosis is important for clinicians and oncologists to predict the prognosis. All thyroid carcinoma should be sampled thoroughly not to miss small foci of PDTC component.
    Matched MeSH terms: Thyroid Neoplasms/epidemiology*; Thyroid Neoplasms/pathology*
  17. Wong YP, Affandi KA, Tan GC, Muhammad R
    Indian J Pathol Microbiol, 2017 9 25;60(3):430-432.
    PMID: 28937391 DOI: 10.4103/IJPM.IJPM_287_16
    Metastatic disease involving the thyroid gland is uncommon. Solitary thyroid metastases from various primary sites particularly kidney, lung, and breast had been previously described. To the best of our knowledge, metastases from two topographically separate primary malignancies to the thyroid have never been documented hitherto. This is the first reported case of cancer-to-cancer metastasis involving an invasive breast carcinoma metastasized within a metastatic renal cell carcinoma in the nonneoplastic thyroid in a 58-year-old woman. Distinguishing a secondary thyroid metastases from a primary thyroid malignancy is utmost crucial as treatment differs. The possibility of tumor metastases from two separated primaries should always be considered in a tumor exhibiting malignant cell populations with two distinctive histomorphological appearances. The role of immunohistochemistry stains in equivocal cases cannot be overemphasized.
    Matched MeSH terms: Thyroid Neoplasms/pathology*; Thyroid Neoplasms/secondary*
  18. Wan Sohaimi WF, Lee YF, Mat Nawi N, Mohd Rohani MF, Sapiai NA
    Indian J Surg Oncol, 2019 Dec;10(4):676-678.
    PMID: 31857764 DOI: 10.1007/s13193-019-00977-8
    We report a unique case of differentiated thyroid carcinoma (DTC) with squamous metaplasia complicated with chronic discharging ulcer. A 76-year-old gentleman was referred to us after defaulted treatment 1 year post-total thyroidectomy. He presented to us with long-standing chronic, non-healing, ulcerative and discharging wound at the anterior neck at previous total thyroidectomy scar. The primary tumour was histologically diagnosed as papillary malignant cells with extensive squamous metaplasia. Squamous metaplasia is a rare finding in thyroid carcinoma that carried a poorer prognostic factor.
    Matched MeSH terms: Thyroid Neoplasms
  19. Marjmin, O., Rohaizak, M., Naqiyah, I., Imtiaz, H., Hartinie, S.M.
    MyJurnal
    Primary thyroid lymphoma is a rare tumour of the thyroid gland, accounting for 1-2 % of all thyroid malignancies. Diagnosis by fine needle aspiration cytology occasionally inconclusive, needing bigger biopsy or even thyroidectomy. This study reviews our experience with primary thyroid lymphoma.
    Matched MeSH terms: Thyroid Neoplasms
  20. Abdul Halim Shibghatullah, Wan Shah Jihan Wan Din, Ramiza Ramza Ramli
    MyJurnal
    Follicular adenoma defined as a well encapsulated benign neoplastic condition of thyroid follicles. We describe this interesting case of a boy presented with right sided neck swelling that was diagnosed as a branchial cyst but later after excision, the histopathology revealed follicular adenoma of the thyroid with hemorrhage and degenerative changes in the centre. To our knowledge, this is the first reported case of follicular thyroid adenoma presented as branchial cyst.
    Matched MeSH terms: Thyroid Neoplasms
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