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follicular adenoma

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https://www.readbyqxmd.com/read/28709933/identification-of-novel-biomarker-and-therapeutic-target-candidates-for-diagnosis-and-treatment-of-follicular-carcinoma
#1
Xianyin Lai, Christopher B Umbricht, Kurt Fisher, Justin Bishop, Qiuying Shi, Shaoxiong Chen
Distinguishing follicular carcinoma from follicular adenoma, based on cytomorphological features, has always been challenging to cytopathologists. Identification of biomarkers for improving diagnostic accuracy is important for clinical management. Meanwhile, it is critical to identify therapeutic target candidates for treatment of follicular carcinoma. Currently, no reliable diagnostic protein biomarkers and therapeutic targets are available. To explore novel protein biomarker and therapeutic target candidates, a liquid chromatography-tandem mass spectrometry approach was applied to analyze control, follicular adenoma, and follicular carcinoma using formalin-fixed, paraffin-embedded tissue samples...
July 11, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28703115/incidental-diagnosis-of-the-tall-cell-variant-of-the-papillary-microcarcinoma-of-the-thyroid-gland-requires-completion-lymphadenectomy-case-report
#2
I Bartella, F Meyer, K Frauenschläger, K Reschke, Th Wallbaum, B Buth, C Bruns, C Chiapponi
Papillary thyroid carcinoma is the most common neoplasm of the thyroid gland which is usually associated with a very good prognosis. The aim of this case report is to present the disease course of a rare tumor of the thyroid gland, which is worthwhile due to its extraordinary appearance and specific management. A 46-year-old patient presented with a pronounced right-sided, but bilateral, multinodular goiter, with a volume of approximately 80 mL, as assessed on ultrasonography. Surgical removal was indicated as scintigraphy showed a 4-cm cold nodule that almost completely took up the right thyroid lobe...
June 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28681580/retrospective-cytological-evaluation-of-indeterminate-thyroid-nodules-according-to-the-british-thyroid-association-2014-classification-and-comparison-of-clinical-evaluation-and-outcomes
#3
Massimo Giusti, Barbara Massa, Margherita Balestra, Paola Calamaro, Stefano Gay, Simone Schiaffino, Giovanni Turtulici, Simonetta Zupo, Eleonora Monti, Gianluca Ansaldo
The cytology of 130 indeterminate nodules (Thy 3) was retrospectively reviewed according to the British Thyroid Association 2014 classification. Nodules were divided into Thy 3a (atypical features) and Thy 3f (follicular lesion) categories. Histology was available as a reference for 97 nodules. Pre-surgical evaluations comprised biochemical tests, color-Doppler ultrasonography (US), semi-quantitative elastography-US (USE), contrast-enhanced US (CEUS), and mutation analysis from cytological slides. Thyroid malignancy was the final diagnosis for 19% of surgically-treated nodules...
July 2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28679352/identification-of-two-distinct-molecular-subtypes-by-digital-rna-counting-of-non-invasive-follicular-tumour-with-papillary-like-nuclear-features-niftp
#4
Riccardo Giannini, Clara Ugolini, Anello Marcello Poma, Maria Urpì, Cristina Niccoli, Rossella Elisei, Massimo Chiarugi, Paolo Vitti, Paolo Miccoli, Fulvio Basolo
Backgound. The follicular variant (FV) is one of the most common variants of papillary thyroid carcinoma (PTC). Clinically, the FVPTC is considered a low-risk variant of PTC, and the encapsulated forms of FVPTC represent a group of thyroid tumours with an overall good prognosis. Consequently, these neoplasms were very recently reclassified as "non-invasive follicular tumour with papillary-like nuclear features (NIFTP)". From a molecular standpoint, NIFTP appears similar to the follicular pattern thyroid neoplasm; however, limited data are currently available regarding their gene expression profile...
July 5, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28677745/galectin-1-is-a-diagnostic-marker-involved-in-thyroid-cancer-progression
#5
Vanessa Arcolia, Fabrice Journe, Aurore Wattier, Emmanuelle Leteurtre, Florence Renaud, Hans-Joachim Gabius, Myriam Remmelink, Christine Decaestecker, Alexandra Rodriguez, Sébastien Boutry, Sophie Laurent, Sven Saussez
Fine-needle aspiration (FNA) is the most commonly used pre-operative technique for diagnosis of malignant thyroid tumor. However, many benign lesions, with indeterminate diagnosis following FNA, are referred to surgery. Based on multifunctionality of the endogenous galectin-1, we aimed to assess its status for early diagnosis of thyroid cancer. Immunohistochemistry for galectin-1 and -3 was performed on a clinical series of 69 cases of thyroid lesions. Galectin-1 expression was further examined in two additional tissue microarrays (TMA) composed of 66 follicular adenomas and 66 papillary carcinomas in comparison to galectin-3 and cytokeratin-19 (CK19)...
July 4, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28673886/newly-diagnosed-sellar-tumors-in-cancer-patients-a-diagnostic-challenge-and-management-dilemma
#6
Carlos R Goulart, Smita Upadhyay, Leo F S Ditzel Filho, Andre Beer-Furlan, Ricardo L Carrau, Luciano M Prevedello, Daniel M Prevedello
OBJECTIVE: The use of PET CT for staging in cancer patients and the widespread use of MRI led to an increased incidence of incidental sellar mass detection. The imaging findings can be suggestive of a benign pituitary tumor but metastasis can never be completely ruled out with non-invasive work-up. Appropriate diagnosis of these sellar masses is critical as the treatment paradigm might change in the presence of a pituitary metastasis. Moreover, definitive tissue diagnosis might prevent unnecessary radiotherapy to the skull base or even the need for systemic treatment when benign pituitary disease is confirmed...
June 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28662277/thyroid-neoplasia-risk-is-increased-nearly-30-years-after-the-chernobyl-accident
#7
Mykola Tronko, Alina V Brenner, Tetiana Bogdanova, Victor Shpak, Valeriy Oliynyk, Elizabeth K Cahoon, Vladimir Drozdovitch, Mark P Little, Valeriy Tereshchenko, Galyna Zamotayeva, Galyna Terekhova, Lyudmila Zurnadzhi, Maureen Hatch, Kiyohiko Mabuchi
To evaluate risk of thyroid neoplasia nearly 30 years following exposure to radioactive iodine (I-131) from the 1986 Chernobyl nuclear accident, we conducted a fifth cycle of thyroid screening of the Ukrainian-American (UkrAm) cohort during 2012-2015, following four previous screening cycles started in 1998. We identified 47 thyroid cancers (TC) and 33 follicular adenomas (FA) among 10,073 individuals who were <18 years at the time of the accident and had a mean I-131 dose of 0.62 Gy. We found a significant I-131 dose response for both TC and FA, with an excess odd ratio per Gy of 1...
June 29, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28660408/phosphorylated-mechanistic-target-of-rapamycin-p-mtor-and-noncoding-rna-expression-in-follicular-and-h%C3%A3-rthle-cell-thyroid-neoplasm
#8
Adam Covach, Sanjay Patel, Heather Hardin, Ricardo V Lloyd
Oncocytic (Hürthle cell) and follicular neoplasms are related thyroid tumors with distinct molecular profiles. Diagnostic criteria separating adenomas and carcinomas for these two types of neoplasms are similar, but there may be some differences in the biological behavior of Hürthle cell and follicular carcinomas. Recent studies have shown that noncoding RNAs may have diagnostic and prognostic utility in separating benign and malignant Hürthle cell and follicular neoplasms. In this study, we examined expression of various noncoding RNAs including metastasis associated lung adenocarcinoma transcript 1 (MALAT1) and miR-RNA-885-5p (miR-885) in distinguishing between benign and malignant neoplasms...
June 28, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28648877/a-rare-presentation-a-case-report-of-osseous-metaplasia-and-mature-bone-formation-in-a-follicular-adenoma-of-the-thyroid
#9
Nadia Aurora, Insia Hashmi, Subhasis Misra, Nail Aydin
INTRODUCTION: Cases of multinodular goiter, thyroid hyperplasia, follicular adenoma, papillary thyroid carcinoma, and anaplastic thyroid carcinoma have been reported with histopathologic findings of osseous metaplasia (OM), bone marrow metaplasia (BMM), ectopic bone formation (EBF), ossification, and extramedullary hematopoiesis (EMH). To date no report of a follicular adenoma with OM and mature EBF in the absence of EMH has been reported in the English language. PRESENTATION OF CASE: 63-year-old woman with an incidental finding of thyroid nodule unable to be biopsied...
June 17, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28614134/value-of-99mtc-mibi-spect-ct-parathyroid-imaging-and-ultrasonography-for-concomitant-thyroid-carcinoma
#10
Rui Guo, Jiqiu Wang, Min Zhang, Miao Zhang, Hongping Meng, Yifan Zhang, Biao Li
PURPOSE: We aimed to assess the frequency of carcinoma in cases with suspected parathyroid adenoma and test the value of Tc-methoxyisobutylisonitrile (Tc-MIBI) single-photon emission computed tomography/computed tomography (SPECT/CT) parathyroid imaging and neck ultrasonography in detecting concomitant thyroid carcinoma. PATIENTS AND METHODS: We enrolled 741 patients with clinically suspected parathyroid adenoma who underwent Tc-MIBI planer scans and SPECT/CT of the skull base, neck, and thorax; patients also underwent ultrasonography within 1 month before SPECT/CT...
August 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28612612/-molecular-aspects-of-thyroid-tumors-with-emphasis-on-microrna-and-their-clinical-implications
#11
M Ludvíková, I Kholová, D Kalfeřt
BACKGROUND: Central to neoplastic transformation and tumor progression is alteration of the signaling pathways that control cell proliferation and apoptosis. The key mechanisms for this neoplastic process are genetic changes (mutations of cancer-related genes) and recently identified epigenetic changes that involve DNA methylation, chromatin remodeling (which has a profound effect on the control of gene expression), and noncoding, regulatory RNA (notably, microRNA - miRNA). MiRNAs control expression of their target gene post-transcriptionally...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28612287/methylation-markers-differentiate-thyroid-cancer-from-benign-nodules
#12
J K Stephen, K M Chen, J Merritt, D Chitale, G Divine, M J Worsham
PURPOSE: The incidence of thyroid cancer (TC) is increasing. Cytology by itself cannot distinguish TC from some benign nodules especially in certain subtypes of TC. Our immediate goal is to identify DNA methylation markers for early detection of TC and to molecularly differentiate TC subtypes from benign nodules. METHODS: Promoter methylation status of 21 candidate genes was examined on formalin-fixed paraffin-embedded tissue (FFPE) utilizing quantitative methylation-specific polymerase chain reaction (QMSP) in a retrospective cohort of 329 patients (56% white, 29% African American, 61% female) comprising 71 normal thyroid, 83 benign nodules [follicular adenomas (FA)], 90 follicular TC (FTC) and 85 papillary TC (PTC)...
June 13, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28610401/oncogenesis-of-thyroid-cancer
#13
Enas Younis
Thyroid neoplasms encompass a variety of lesions that range from benign adenomas to malignancies. These latter can be well-differentiated, poorly differentiated or undifferentiated (anaplastic) carcinomas. More than 95% of thyroid cancers are derived from thyroid follicular cells, while 2-3% (medullary thyroid cancers, MTC) originate from calcitonin producing C-cells. Over the last decade, investigators have developed a clearer understanding of genetic alterations underlying thyroid carcinogenesis. A number of point mutations and translocations are involved, not only in its tumorigenesis, but also as have potential use as diagnostic and prognostic indicators and therapeutic targets...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28589092/-nodule-in-nodule-on-thyroid-ultrasonography-possibility-of-follicular-carcinoma-transformed-from-benign-thyroid-tumor
#14
Kaoru Kobayashi, Hisashi Ota, Mitsuyoshi Hirokawa, Tomonori Yabuta, Mitsuhiro Fukushima, Hiroo Masuoka, Takuya Higashiyama, Minoru Kihara, Yasuhiro Ito, Akihiro Miya, Akira Miyauchi
BACKGROUND: It is generally considered impossible to differentiate follicular carcinomas from follicular adenomas by means of ultrasonography or cytology before surgery. Therefore, follicular carcinoma is histopathologically diagnosed by verifying capsular and/or vascular invasion after surgery. However, ultrasonography may play an important role in diagnosing follicular carcinoma preoperatively in a small number of cases. CASE DESCRIPTION: Four cases of follicular carcinoma or follicular neoplasm that transformed from a benign thyroid tumor and demonstrated a "nodule in nodule" appearance on ultrasonography are presented in this report...
April 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/28584708/analyses-of-antioxidant-status-and-nucleotide-alterations-in-genes-encoding-antioxidant-enzymes-in-patients-with-benign-and-malignant-thyroid-disorders
#15
Nur Siti Fatimah Ramli, Sarni Mat Junit, Ng Khoon Leong, Nurhanani Razali, Jaime Jacqueline Jayapalan, Azlina Abdul Aziz
BACKGROUND: Synthesis of thyroid hormones and regulation of their metabolism involve free radicals that may affect redox balance in the body. Thyroid disorders causing variations in the levels of thyroid hormones may alter cellular oxidative stress. The aim of this study was to measure the antioxidant activities and biomarkers of oxidative stress in serum and red blood cells (RBC) of patients with benign and malignant thyroid disorders and to investigate if changes in the antioxidant activities in these patients were linked to alterations in genes encoding the antioxidant enzymes...
2017: PeerJ
https://www.readbyqxmd.com/read/28576880/differential-regulation-of-monocarboxylate-transporter-8-expression-in-thyroid-cancer-and-hyperthyroidism
#16
Julia Badziong, Saskia Ting, Sarah Synoracki, Vera Tiedje, Klaudia Brix, Georg Brabant, Lars C Moeller, Kurt Werner Schmid, Dagmar Führer-Sakel, Denise Zwanziger
OBJECTIVE: Thyroid hormone (TH) transporters are expressed in thyrocytes and most likely/putatively may play a role in TH-release. We asked whether expression of the monocarboxylate transporter 8 (MCT8) and the L-type amino acid transporters LAT2 and LAT4 is changed with thyrocyte dedifferentiation and in hyperfunctioning thyroid tissues. DESIGN AND METHODS: Protein expression and localization of transporters was determined by immunohistochemistry in human thyroid specimen including normal thyroid tissue (NT, n=19), follicular adenoma (FA, n=44), follicular thyroid carcinoma (FTC, n=45), papillary thyroid carcinoma (PTC, n=40), anaplastic thyroid carcinoma (ATC, n=40) and Graves' disease (GD, n=50) by calculating the 'hybrid' (H) score...
June 2, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28574441/gene-expression-mrna-markers-for-differentiating-between-malignant-and-benign-follicular-thyroid-tumours
#17
Bartosz Wojtas, Aleksandra Pfeifer, Malgorzata Oczko-Wojciechowska, Jolanta Krajewska, Agnieszka Czarniecka, Aleksandra Kukulska, Markus Eszlinger, Thomas Musholt, Tomasz Stokowy, Michal Swierniak, Ewa Stobiecka, Ewa Chmielik, Dagmara Rusinek, Tomasz Tyszkiewicz, Monika Halczok, Steffen Hauptmann, Dariusz Lange, Michal Jarzab, Ralf Paschke, Barbara Jarzab
Distinguishing between follicular thyroid cancer (FTC) and follicular thyroid adenoma (FTA) constitutes a long-standing diagnostic problem resulting in equivocal histopathological diagnoses. There is therefore a need for additional molecular markers. To identify molecular differences between FTC and FTA, we analyzed the gene expression microarray data of 52 follicular neoplasms. We also performed a meta-analysis involving 14 studies employing high throughput methods (365 follicular neoplasms analyzed). Based on these two analyses, we selected 18 genes differentially expressed between FTA and FTC...
June 2, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28547974/diagnostic-value-of-trop-2-expression-in-papillary-thyroid-carcinoma-and-comparison-with-hbme-1-galectin-3-and-cytokeratin-19
#18
Afsin Rahman Murtezaoglu, Hasan Gucer
In this study, we compared the diagnostic value of TROP-2 expression in distinguishing between benign and malignant thyroid lesions to those of HBME-1, CK19 and galectin-3. We selected 102 cases from our archive including 20 normal thyroid tissues, 23 follicular nodular diseases, 17 follicular adenomas, 20 follicular variant papillary carcinomas and 22 classical variant papillary carcinomas. Tissue microarrays constructed from these cases were immunohistochemically analyzed with HBME-1, CK19, galectin-3 and TROP-2...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/28544576/atypical-adenoma-of-the-thyroid-diagnosed-as-anaplastic-cancer-by-cytopathology
#19
Hiromitsu Hatakeyama, Kimiko Hoshino, Kenji Mizoguchi, Takayoshi Suzuki, Kanako C Hatanaka, Yukie Yamaya, Satoshi Kano, Takatsugu Mizumachi, Akihiro Homma
Atypical adenoma of the thyroid is a rare form of tumor, and its accurate diagnosis prior to surgical resection is difficult as the histological and pathological morphologies are very similar to those of anaplastic thyroid carcinoma (ATC), and its anaplastic transformation remains to be elucidated. We reported a case of a 75-year-old female with a thyroid isthmus nodule diagnosed repeatedly by FNAC as anaplastic carcinoma. Both the first and second FNAC specimen slides showed a large number of scattered or aggregated atypical cells consisting of large, pleomorphic nuclei with irregular membranes, chromatin clumps and prominent nucleoli...
May 22, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28529587/expression-of-claudin-1-4-and-7-in-thyroid-neoplasms
#20
Dinç Süren, Mustafa Yildirim, Alper Sayiner, Arsenal Sezgin Alikanoğlu, Irem Atalay, Umut Riza Gündüz, Vildan Kaya, Şeyda Gündüz, Mehmet Tahir Oruç, Cem Sezer
The distinction of thyroid carcinoma from benign thyroid neoplasm, as well as the subtyping of papillary carcinoma (PC) and follicular carcinoma (FC), may be performed histopathologically in the majority of cases. However, in certain cases, it is difficult to histopathologically distinguish between PC and FC, as well as follicular adenoma (FA), FC and the dominant nodule of multinodular goiter (MNG-DN). The present study aimed to determine the roles of the expression levels of the tight junction proteins claudin 1, 4 and 7 in the differential diagnosis of PC, FC, FA, MNG-DN, medullary carcinoma (MC) and anaplastic carcinoma (AC)...
May 2017: Oncology Letters
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