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Papillary thyroid cancer

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https://www.readbyqxmd.com/read/28808756/relationship-between-18-f-fluorodeoxyglucose-accumulation-and-the-braf-v600e-mutation-in-papillary-thyroid-cancer
#1
Jae Won Chang, Ki Wan Park, Jae Hyung Heo, Seung-Nam Jung, Lihua Liu, Sung Min Kim, In Sun Kwon, Bon Seok Koo
BACKGROUND: To determine whether (18)F-fluoro-2-deoxyglucose ((18)F-FDG)-PET/CT is useful for predicting the BRAF (V600E) mutation status of a primary papillary thyroid carcinoma (PTC). METHODS: A retrospective analysis was performed in 108 patients who underwent (18)F-FDG positron emission tomography-computed tomography (PET/CT) for staging before thyroidectomy and BRAF analysis in biopsy-confirmed PTC. The maximum standardized uptake value (SUVmax) of the primary tumor was calculated according to FDG accumulation...
August 14, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28807924/thyroid-cancer-incidence-in-canada-a-national-cancer-registry-analysis
#2
Dawnelle Topstad, James A Dickinson
BACKGROUND: Thyroid cancer incidence rates are increasing in many developed countries while mortality rates remain stable. International evidence shows that the increase in incidence rates is mostly caused by overdiagnosis of small papillary cancers. We sought to describe how thyroid cancer incidence has changed and how it varies between provinces in Canada. METHODS: Data were obtained from the National Cancer Incidence Reporting System, causes of death tables and the Canadian Cancer Registry using the 1991 census population structure...
August 11, 2017: CMAJ Open
https://www.readbyqxmd.com/read/28807450/role-of-contrast-enhanced-ultrasound-in-the-pre-operative-diagnosis-of-cervical-lymph-node-metastasis-in-patients-with-papillary-thyroid-carcinoma
#3
Yu-Rong Hong, Zhi-Yan Luo, Guo-Qiang Mo, Ping Wang, Qin Ye, Pin-Tong Huang
The objective of this study was to prospectively evaluate the diagnostic accuracy of contrast-enhanced ultrasonography (CEUS) in differentiating between benign and metastatic cervical lymph nodes in patients with papillary thyroid cancer (PTC). Three hundred nineteen cervical lymph nodes (162 metastatic from PTC and 157 benign) were evaluated using conventional ultrasonography (US) and CEUS before biopsy or surgery. Metastatic lymph nodes more often manifested centripetal or asynchronous perfusion, hyper-enhancement, heterogeneous enhancement, perfusion defects and ring-enhancing margins than benign lymph nodes at pre-operative CEUS (all p values < 0...
August 11, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28807198/encapsulated-follicular-variant-of-papillary-thyroid-cancer-are-these-tumors-really-benign
#4
Zviadi Aburjania, Samuel Jang, Celina Montemayor-Garcia, Ricardo V Lloyd, David F Schneider, Rebecca S Sippel, Herbert Chen, Dawn M Elfenbein
BACKGROUND: Recent studies suggest that the encapsulated form of follicular variant of papillary thyroid cancer (eFVPTC) behaves more similarly to benign lesions and can be treated with thyroid lobectomy alone instead of total thyroidectomy. To distinguish aggressive cancers from more benign lesions more clearly, the objective of this study was to determine if the eFVPTC behaves less aggressively than the nonencapsulated variant (neFVPTC). METHODS: A prospectively collected endocrine surgery database in our institution was reviewed for all patients with FVPTC on surgical pathology from 1999 to 2012...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28805135/intermittent-dosing-of-dabrafenib-and-trametinib-in-metastatic-brafv600e-mutated-papillary-thyroid-cancer-two-case-reports
#5
Paul S White, Anita Pudusseri, Stephanie L Lee, Omar Eton
BACKGROUND: A multi-institutional randomized Phase II trial of continuous dosing of dabrafenib with or without trametinib is ongoing in metastatic thyroid cancer. Preclinical evidence and emerging clinical experience in other cancers support evaluating intermittent dosing of these two agents to achieve more durable response, while being better tolerated and more cost effective. PATIENTS: Two consecutive patients with symptomatic, metastatic radioactive iodine (RAI) resistant BRAF V600E mutated papillary thyroid cancer and poor performance status were treated initially with dabrafenib 150mg twice daily plus trametinib 2mg once daily, first in continuous daily dosing, then in a five-week-on and three-week-off schedule...
August 12, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28804657/a-recurrent-episode-of-dermatomyositis-associated-with-papillary-thyroid-cancer
#6
Vijay Gopal Eranki
OBJECTIVE: It is uncommon for dermatomyositis to be associated with papillary thyroid cancer. We report an unusual case of papillary thyroid cancer presenting with dermatomyositis. METHODS: The case history, imaging and laboratory data is reviewed. RESULTS: We report the case of a 62-year-old female with a prior history of dermatomyositis and breast cancer who presented with a recurrent episode of dermatomyositis. Extensive evaluation of the cause of the dermatomyositis recurrence revealed no recurrence of the breast cancer but a thyroid nodule was identified...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/28804541/a-potential-role-for-the-hippo-pathway-protein-yap-in-controlling-proliferation-cell-cycle-progression-and-autophagy-in-bcpap-and-ki-thyroid-papillary-carcinoma-cells
#7
Zeming Liu, Wen Zeng, Shi Wang, Xiangwang Zhao, Yawen Guo, Pan Yu, Xingjie Yin, Chunping Liu, Tao Huang
PURPOSE: The aims were two-fold: first, to examine the expression of Yes-activated protein (YAP), a key Hippo pathway regulator, in clinical thyroid papillary carcinoma samples and to correlate this with clinicopathological parameters; second, to explore the role of YAP in regulating cell growth and division in vitro. METHODS AND RESULTS: YAP expression was determined by immunohistochemistry of clinical thyroid papillary carcinoma tissue microarrays and expression was correlated with clinicopathological parameters...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28801060/prognostic-markers-in-well-differentiated-papillary-and-follicular-thyroid-cancer-wdtc
#8
REVIEW
S L Gillanders, J P O'Neill
OBJECTIVES: WDTC (papillary and follicular thyroid cancer) make up around 90% of all thyroid tumours. Overall, the prognosis in patients with WDTC is excellent. However, there are small cohorts of patients who experience a more aggressive form of disease which is often associated with certain poor prognostic factors. Identifying these patients at an early stage is imperative for guiding treatment decisions. With recent developments in this area we plan to discuss the current evidence surrounding prognostic markers...
August 3, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28797186/ethanol-and-thermal-ablation-for-malignant-thyroid-tumours
#9
So Yeong Jeong, Jung Hwan Baek, Young Jun Choi, Jeong Hyun Lee
Papillary thyroid carcinoma (PTC) is the most common subtype of thyroid malignancy and has a good prognosis and low mortality rate. Surgery is the standard treatment for patients with primary and recurrent thyroid cancer. Although patients with PTC usually exhibit excellent treatment outcome, the incidence of recurrence in the neck ranges from 20% to 59%. When a patient with thyroid cancer is contraindicated for surgery, ultrasound (US)-guided ablation techniques, including ethanol ablation (EA) and thermal ablations, are suggested alternatives...
August 11, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28782797/in-situ-preservation-of-the-inferior-parathyroid-gland-during-central-neck-dissection-for-papillary-thyroid-carcinoma
#10
J B Wang, K Wu, L H Shi, Y Y Sun, F B Li, L Xie
BACKGROUND: Postoperative hypocalcaemia due to dysfunction of the parathyroid glands is the most common complication after total thyroidectomy plus central neck dissection (CND). There is a lack of surgical techniques described to help preserve the inferior parathyroid gland in situ during CND. The objective of this study was to introduce the 'TBP layer' (layer of thymus-blood vessel-inferior parathyroid gland) concept for preserving the inferior parathyroid gland in situ during CND, and to evaluate its effectiveness...
August 7, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28780248/invasive-follicular-variant-of-papillary-thyroid-cancer-harboring-the-nras-mutation-q61k-and-presenting-with-bone-metastasis-a-case-report
#11
Raman Mehrzad, Michiya Nishino, Carmelo Nucera, Dora Dias-Santagata, James V Hennessey, Per-Olof Hasselgren
INTRODUCTION: The follicular variant of papillary thyroid cancer (FVPTC) can be noninvasive or invasive. The invasive form of FVPTC commonly harbors BRAF mutations whereas RAS mutations are more often associated with noninvasive FVPTC and a favorable clinical outcome. CASE REPORT: A 47-year-old man presented with a metastasis to his right iliac bone as the initial manifestation of a 1.6cm invasive FVPTC. After total thyroidectomy, the patient underwent additional treatment, including thyroid hormone suppressive treatment to non-detectable TSH levels, repeated courses of radioiodine treatment, external beam radiation, and treatment with the tyrosine kinase inhibitor sorafenib...
July 20, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28778079/nationwide-cohort-study-on-the-epidemiology-and-survival-outcomes-of-thyroid-cancer
#12
Fu-Chao Liu, Huan-Tang Lin, Shu-Fu Lin, Chang-Fu Kuo, Ting-Ting Chung, Huang-Ping Yu
In the past three decades, the thyroid cancer incidence has surged globally. Herein, the Taiwan National Health Insurance database was used to identify thyroid cancer patients and to estimate the prevalence and incidence of thyroid cancer during 1997-2012. The Taiwan Cancer Registry and the National Death Registry databases were crosslinked to obtain information on the histological subtypes and survival rates. Joinpoint regression analysis was used for estimating the average annual percentage changes (APCs) in prevalence, incidence, and survival...
July 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28772138/exposure-to-flame-retardant-chemicals-and-occurrence-and-severity-of-papillary-thyroid-cancer-a-case-control-study
#13
Kate Hoffman, Amelia Lorenzo, Craig M Butt, Stephanie C Hammel, Brittany Bohinc Henderson, Sanziana A Roman, Randall P Scheri, Heather M Stapleton, Julie Ann Sosa
BACKGROUND: Thyroid cancer is the fastest increasing cancer in the U.S., and papillary thyroid cancer (PTC) accounts for >80% of incident cases. Increasing exposure to flame retardant chemicals (FRs) has raised concerns about their possible role in this 'epidemic'. The current study was designed to test the hypothesis that higher exposure to FRs is associated with increased odds of PTC. METHODS: PTC patients at the Duke Cancer Institute were approached and invited to participate...
July 31, 2017: Environment International
https://www.readbyqxmd.com/read/28770959/the-expression-and-function-of-long-noncoding-rna-lncrna-atb-in-papillary-thyroid-cancer
#14
X-M Fu, W Guo, N Li, H-Z Liu, J Liu, S-Q Qiu, Q Zhang, L-C Wang, F Li, C-L Li
OBJECTIVE: This study aimed to investigate the expression and clinical significances of long noncoding RNA-ATB (lncRNA-ATB) in papillary thyroid cancer (PTC), and to explore the roles of lncRNA-ATB in PTC cell proliferation and migration. PATIENTS AND METHODS: The expression of lncRNA-ATB in 64 PTC tissues and paired adjacent noncancerous thyroid tissues was measured. The association between lncRNA-ATB expression and clinicopathological characteristics was analyzed by Pearson X2...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28769567/thyroid-cancer-in-a-patient-with-lynch-syndrome-case-report-and-literature-review
#15
Monika Fazekas-Lavu, Andrew Parker, Allan D Spigelman, Rodney J Scott, Richard J Epstein, Michael Jensen, Katherine Samaras
Lynch syndrome describes a familial cancer syndrome comprising germline mutations in one of four DNA mismatch repair genes, MLH1, MSH2, MSH6, and PMS2 and is characterized by colorectal, endometrial, and other epithelial malignancies. Thyroid cancer is not usually considered to be part of the constellation of Lynch syndrome cancers nor have Lynch syndrome tumor gene mutations been reported in thyroid malignancies. This study reports a woman with Lynch syndrome (colonic cancer and a DNA mismatch repair mutation in the MSH2 gene) with a synchronous papillary thyroid cancer...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28764174/an-indian-tertiary-care-hospital-scenario-of-papillary-carcinoma-of-thyroid
#16
Ponnuswamy Karkuzhali, Muthureddy Yogambal, Manoj Kumar
INTRODUCTION: Thyroid carcinoma is the most common endocrine malignancy and its Papillary Histotype {Papillary Carcinoma of Thyroid (PTC)} is the most common type of Thyroid cancer. The clinicopathological features of PTC vary with geographical location. AIM: To describe the clinicopathological profile of PTC in a Tertiary Care Hospital located in Chennai, Tamil Nadu, India. MATERIALS AND METHODS: Data on age, sex, centricity of the tumour, presence of calcifications, infiltration, metastasis, associated non malignant conditions and frequency of histological subtypes of all cases of PTC diagnosed in Department of Pathology, Madras Medical College Chennai, Tamil Nadu, India between January 2007 and December 2011 were obtained from clinicopathological documents and analysed statistically...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28763670/association-between-chronic-exposure-to-different-water-iodine-and-thyroid-cancer-a-retrospective-study-from-1995-to-2014
#17
Chunpeng Lv, Yanmei Yang, Lixin Jiang, Lin Gao, Shengzhong Rong, Gottfried M Darko, Wen Jiang, Yanhui Gao, Dianjun Sun
The controversy that iodine intake may increase the risk of thyroid cancer has heightened over the past twenty years. In this retrospective study, we mainly analyzed the association between water iodine and thyroid cancer and discussed the possible cause of the increase in thyroid cancer. This study was supported by three hospitals in areas with different water iodine concentration. 5574 patients with thyroid disease were recruited, of which 1429 patients had been diagnosed with thyroid cancer. These samples collectively were used to analyze the relationship of incidence and prevalence associated with water iodine...
July 28, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28762013/the-role-of-micrornas-in-different-types-of-thyroid-carcinoma-a-comprehensive-analysis-to-find-new-mirna-supplementary-therapies
#18
REVIEW
S Pishkari, M Paryan, M Hashemi, E Baldini, S Mohammadi-Yeganeh
The most common endocrine malignancy is thyroid cancer, and researchers have made a great deal of progress in deciphering its molecular mechanisms in the recent years. Many of molecular changes observed in thyroid cancer can be used as biomarkers for diagnosis, prognosis, and therapeutic targets for treatment. MicroRNAs (miRNAs) are important parts in biological and metabolic pathways such as regulation of developmental stages, signal transduction, cell maintenance, and differentiation. Therefore, their dysregulation can expose individuals to malignancies...
July 31, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28760234/thyroid-cancer-ultrasound-imaging-and-fine-needle-aspiration-biopsy
#19
REVIEW
Michelle Melany, Sardius Chen
Ultrasound is critical in detection, diagnosis, and management of thyroid nodules. Ultrasound detection of regional nodal metastatic disease is based on abnormal nodal morphology rather than size and is critical to initial surgical and long-term management of thyroid cancer. Fine-needle aspiration biopsy is the gold standard for malignancy diagnosis in thyroid cancer. Thyroglobulin assay of nodal aspirates improves accuracy in diagnosis of metastases. Reporting lexicons assign risk levels to thyroid nodules with the goal of improving and standardizing patient management...
September 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28759150/adequate-sampling-of-multiple-thyroid-nodules-by-fine-needle-aspiration
#20
Andrew A Renshaw, Ewing W Gould
BACKGROUND: Recommendations regarding how many nodules to biopsy with thyroid fine-needle aspiration vary. METHODS: The authors reviewed fine-needle aspiration specimens of 12,763 nodules from 10,506 patients and correlated them with the number of nodules biopsied. RESULTS: Compared with patients in whom only a single nodule was biopsied, patients in whom multiple nodules were biopsied were found to be significantly younger, more likely female, and to have larger tumors, and those tumors were more often papillary (all P<...
July 31, 2017: Cancer
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