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Follicular thyroid

Petrina Koumarianou, Gonzalo Goméz-López, Pilar Santisteban
Organization of epithelial cells during follicular lumen formation is crucial for thyroid morphogenesis and function of the thyroid gland; however, the molecular mechanisms underlying this are poorly understood. To investigate this process, we established three-dimensional (3D) epithelial culture model systems using Fischer rat thyroid (FRT) cells or murine primary thyrocytes that developed polarized spherical structures with a central lumen mimicking thyroid follicles. Using microarray-based differential expression analysis of FRT cells grown under 2D or 3D conditions followed by RNA-mediated interference (RNAi) and morphogenetic analysis, we identified a key role for the thyroid transcription factor Pax8 and its target Cadherin-16 (Cdh16) in the generation of polarized follicle-like structures...
October 25, 2016: Journal of Cell Science
Marko Gerić, Ana Marija Domijan, Valentina Gluščić, Renato Janušić, Božena Šarčević, Vera Garaj-Vrhovac
Since the incidence of cancer has increased over the years, adequate prevention programmes are needed. Thyroid cancer is one of the fastest growing cancer types in the world. In this study we performed a case-control study of 100 untreated patients with thyroid diseases (papillary thyroid cancer, follicular thyroid adenoma, and other thyroid diseases) and 100 control volunteers. Oxidative status differed among the two investigated groups. The patients' group had 1.60-fold higher concentrations of malondialdehyde and 1...
November 1, 2016: Mutation Research
Tomoki Hirunagi, Katsunori Sato, Masahiko Fujino, Keiko Tanaka, Yoji Goto, Kazuo Mano
The patient was a 61-year-old woman with thyroid enlargement since her 20s. She began to fall down repeatedly towards the end of June 2015. She was admitted to our hospital in the middle of August because of difficulty in walking. Upon admission, she presented with neck tremor and was unable to maintain a sitting position due to ataxia of the trunk and limbs. We studied serum anti-neuronal antibodies and obtained a positive result for anti-amphiphysin antibody (AMPH-Ab). Cerebrospinal fluid analysis revealed elevated protein levels and IgG index...
October 21, 2016: Rinshō Shinkeigaku, Clinical Neurology
Yuanxin Liang, Tao Zuo
Diagnosis of cystic papillary thyroid carcinoma (PTC) lymph node metastasis at head neck region can be a challenge in the absence of known PTC history. The congenital cystic lesions of head neck, especially thyroglossal duct cyst (TGDC) and branchial cleft cyst (BCC), are major differential diagnoses in this clinicopathological scenario. The location of cyst and morphology of lining epithelium are critical clues for reaching correct diagnosis. However it is not uncommon that the flattened bland epithelial lining can be seen in both cystic metastases and congenital cystic lesions...
October 21, 2016: Head and Neck Pathology
Mohsen Qutbi, Babak Shafeie, Mahasti Amoui, Faraj Tabeie, Zahra Azizmohammadi, Ali Mahmoud-Pashazadeh, Hamid Javadi, Majid Assadi, Isa Neshandar Asli
BACKGROUND: Because one of the major sites for metastasis of thyroid cancers is the lung, studying the pattern of pulmonary metastasis may provide useful information for the effective treatment of these patients. In this study, by assessing the metastasis pattern, we aimed to identify the factors that may affect prognosis and response to treatment in patients with differentiated thyroid carcinoma (DTC) with pulmonary metastasis. METHODS: This retrospective study included 75 patients with DTC with pulmonary metastasis who were referred to our nuclear medicine section over a period of 10 years...
October 18, 2016: Clinical Nuclear Medicine
Michele M Merten, M Regina Castro, Jun Zhang, Jolanta M Durski, Mabel Ryder
BACKGROUND: Cytologically defined indeterminate thyroid nodules are a diagnostic challenge. Surgical lobectomy remains gold standard for definitive diagnosis, however, 70-85% of nodules are ultimately benign. The primary objective of this study was to evaluate the negative predictive value (NPV) of F18-Fluorodeoxyglucose (FDG) positron emission computed tomography (PET/CT) in excluding cancer among cytologically indeterminate thyroid nodules within our institution using surgical pathology as a gold standard reference and to perform a systematic review of published prospective studies on the NPV of PET/CT in evaluating indeterminate thyroid nodules...
October 20, 2016: Thyroid: Official Journal of the American Thyroid Association
Soo Yeon Hahn, Jung Hee Shin, Hyun Kyung Lim, So Lyung Jung, Young Lyun Oh, In Ho Choi, Chan Kwon Jung
BACKGROUND: A recent concept was proposed that the non-invasive encapsulated follicular variant of papillary thyroid carcinoma (EFVPTC) reclassified as "non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP) is benign. Our aim was to identify the differences between NIFTP and non-NIFTP preoperatively. METHODS: This retrospective study included a total of 208 patients with 208 FVPTCs that were surgically confirmed at 3 university hospitals from 2008 through 2014...
October 19, 2016: Clinical Endocrinology
Paula Boaventura, Rui Batista, Ana Pestana, Marta Reis, Adélia Mendes, Catarina Eloy, Manuel Sobrinho-Simoes, Paula Soares
Objective - The aim of this study is to evaluate the frequency and molecular characteristics of TERTp mutations in thyroid adenomas and carcinomas occurring in the low dose radiation exposure tinea capitis setting. Design and methods - Twenty seven patients with 34 well differentiated thyroid carcinomas and 28 patients with 29 follicular adenomas diagnosed in a Portuguese tinea capitis cohort of 1375 patients, were studied. Blood samples were obtained from all the patients. Screening for TERTp mutations was performed by PCR amplification followed by Sanger sequencing...
October 19, 2016: European Journal of Endocrinology
X Chen, F X Dou, X B Cheng, A T Guo, H Y Shi
Objective: To study the clinicopathologic features of thyroid-like follicular renal cell carcinoma. Methods: Clinical data were collected in 5 cases of thyroid-like follicular renal cell carcinoma. HE staining and immunohistochemistry were carried out in surgically-removed specimen to analyze the clinical and pathological features with review of the literatures. Results: The patients aged 20-55 years, with one male and four females; the tumor occurred in the left kidney in three cases and right kidney in two cases...
October 8, 2016: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
Monika Pietrowska, Hanna C Diehl, Grzegorz Mrukwa, Magdalena Kalinowska-Herok, Marta Gawin, Mykola Chekan, Julian Elm, Grzegorz Drazek, Anna Krawczyk, Dariusz Lange, Helmut E Meyer, Joanna Polanska, Corinna Henkel, Piotr Widlak
Determination of the specific type of thyroid cancer is crucial for the prognosis and selection of treatment of this malignancy. However, in some cases appropriate classification is not possible based on histopathological features only, and it might be supported by molecular biomarkers. Here we aimed to characterize molecular profiles of different thyroid malignancies using mass spectrometry imaging (MSI) which enables the direct annotation of molecular features with morphological pictures of an analyzed tissue...
October 17, 2016: Biochimica et Biophysica Acta
Maral Mokhtari, Perikala Vijayananda Kumar, Kamran Hayati
BACKGROUND: Cystic papillary thyroid carcinoma (CPTC) is a variant of papillary carcinoma that has many mimickers in cytological grounds. AIM: To study the cytomorphologic features of CPTC and compare them to those of other cystic thyroid lesions using fine-needle aspiration cytology (FNAC). We also aimed to identify the cytomorphologic features that distinguish CPTC from other cystic thyroid lesions. MATERIALS AND METHODS: Seventy-three cases of CPTC were included in the study...
July 2016: Journal of Cytology
Shih-Ping Cheng, Po-Sheng Yang, Ming-Nan Chien, Ming-Jen Chen, Jie-Jen Lee, Chien-Liang Liu
BACKGROUND AND OBJECTIVES: The induction of tumor-associated carbohydrate antigen results from altered glycosylation in transformed cells. Globo H is a hexasaccharide glycosphingolipid overexpressed on malignancies of epithelial origin and has become an attractive vaccine target. We aimed to investigate the expression patterns and prognostic value of Globo H in thyroid neoplasms. METHODS: Globo H expression was examined by immunohistochemical analysis using commercial and in-house tissue microarrays...
October 18, 2016: Journal of Surgical Oncology
Geetesh Manik, John Jose, B Hygriv Rao
Intra-cardiac extension of tumour thrombus of follicular carcinoma of thyroid is uncommon. We report a case of advanced thyroid carcinoma where tumour thrombus was well profiled with CT scan and transesophageal echo images and extension was noted from SVC into right atrium, with clinical features of superior vena cava syndrome. The clinical significance of the "ring sign" is discussed.
September 2016: Indian Heart Journal
Marc Gregory Yu, Jenny Maureen Atun
Tuberculous (TB) lymphadenitis can mimic cervical node metastasis from papillary thyroid carcinoma (PTC) since the distribution and appearance of affected lymph nodes are similar. We present the case of an asymptomatic 50-year-old Filipino who sought consult for a gradually enlarging anterior neck mass and a single palpable cervical lymph node. Preoperative workup suggested a thyroid malignancy with nodal metastasis. He underwent total thyroidectomy with node dissection where histopathology confirmed follicular variant- (FV-) PTC...
2016: Case Reports in Medicine
Friedhelm Raue, Karin Frank-Raue
Thyroid cancer is the most common endocrine malignancy. Differentiated thyroid cancer (DTC) with the two subtypes, papillary thyroid cancer (PTC) and follicular thyroid cancer (FTC), is the most frequent subtype of thyroid cancer; more rare subtypes are medullary thyroid cancer (MTC) and anaplastic thyroid cancer (ATC). The incidence of DTC has increased rapidly in recent years due to the more frequent use of imaging methods such as ultrasound of the neck and fine-needle aspiration (FNA) of thyroid nodules...
October 15, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Lin-Yun He, Wei-Wei Wang, Balde Alpha Ibrahima, Shuai Han, Zhou Li, Zhai Cai, Miao-Liang Chen, Bao-Zhu Chen, Hui-Shi Tan, Hai-Shan Zeng, Xiao-Li Dai, Min-Wei Zhou, Gang-Qing Zhang, Guo-Xin Li
Although the prognostic value of nodal metastases in differentiated thyroid cancer remains controversial, it is of interest to evaluate and understand the different characteristics of predictive outcomes.A multicenter retrospective study was conducted in 215 untreated patients with differentiated thyroid cancer from July 1997 to July 2015 in 4 medical centers of Guangdong Province. A total of 107 patients with nodal metastases (group A) were compared to 108 patients without metastases (group B). The 5-year disease-free survival (DFS), overall survival (OS), and postoperative complications in both groups were calculated...
October 2016: Medicine (Baltimore)
Junguee Lee, Shinae Yi, Yea Eun Kang, Hyeon-Woo Kim, Kyong Hye Joung, Hae Joung Sul, Koon Soon Kim, Minho Shong
Background: Although both thyroid histology and serum concentrations of hormones are known to change with age, only a few reports exist on the relationship between the age-related structural and functional changes of the thyroid follicles in both mice and humans. Our objectives were to investigate age-related histological changes of the thyroid follicles and to determine whether these morphological changes were associated with the functional activity of the follicles. Materials and Methods: The thyroid glands of mice at 18 weeks and at 6, 15, and 30 months of age were histologically examined, and the serum levels of thyroid hormones were measured in 11-week-old and 20-month-old mice...
October 14, 2016: Journal of Pathology and Translational Medicine
Beatriz G Cavalheiro, Leandro L Matos, Ana Kober N Leite, Marco Aurélio V Kulcsar, Claudio R Cernea, Lenine G Brandão
Objective: The aim of the present study was to describe the epidemiologic data, histological type, treatment and follow-up of the 811 patients treated for thyroid cancer in Instituto do Câncer do Estado de São Paulo (ICESP) over 5 years. Materials and methods: Retrospective analyses of electronic chart information. Results: There were 679 cases (83.7%) of papillary thyroid cancer, 61 (7.5%) of follicular carcinoma, 54 (6.7%) of medullary carcinoma, 11 (1...
October 10, 2016: Archives of Endocrinology and Metabolism
Umal Azmat, Kyle Porter, Leigha Senter, Matthew D Ringel, Fadi Nabhan
BACKGROUND: Thyroglobulin (Tg) measurement in patients with positive anti-thyroglobulin antibodies (anti-Tg Abs) is not reliable. Tg measurement using Liquid Chromatography Tandem Mass Spectrometry (LC/MS) may be useful in this setting Methods: This is a retrospective study with the objective to determine the accuracy of Tg-LC/MS in patients with thyroid cancer with anti-Tg Abs. We evaluated all patients with follicular cell-derived thyroid cancer (TC) who had thyroglobulin measured using LC/MS assay from 11/1/2013-11/7/2014...
October 13, 2016: Thyroid: Official Journal of the American Thyroid Association
Giovanni Tallini, R Michael Tuttle, Ronald A Ghossein
CONTEXT: The purpose of this review is to provide the historical context to recent developments in the classification of the follicular variant of papillary thyroid carcinoma (FVPTC), an entity that has long created significant controversy. The scope is to illustrate the evolution of the diagnostic criteria for papillary thyroid carcinoma, clarifying the role of molecular analysis, and the impact on patient management. EVIDENCE ACQUISITION: A PubMed search using the terms "follicular variant" and "papillary thyroid carcinoma" covering the years 1960-2016 was performed...
October 12, 2016: Journal of Clinical Endocrinology and Metabolism
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