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Thyroid carcinomas

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https://www.readbyqxmd.com/read/28346249/usefulness-of-68ga-dota-rgd-%C3%AE-v%C3%AE-3-pet-ct-imaging-in-thyroglobulin-elevation-with-negative-iodine-scintigraphy
#1
Rakhee Vatsa, Jaya Shykla, Bhagwant Rai Mittal, Priya Bhusari, Apurva Sood, Rajender Kumar Basher, Anish Bhattacharya
TENIS (thyroglobulin elevation with negative iodine scintigraphy) syndrome in patients with differentiated thyroid carcinoma is not a rare finding. In such patients, F-FDG PET/CT can help in disease evaluation. RGD tripeptide, used for imaging angiogenesis, may also help in disease detection in patients with negative radioiodine whole-body scan. We present 1 such case in whom Ga-RGD tripeptide imaging was helpful in disease detection in the setting of negative radioiodine whole-body scan.
March 24, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28345837/association-of-the-asp1312gly-thyroglobulin-gene-polymorphism-with-susceptibility-to-differentiated-thyroid-cancer-in-an-iranian-population
#2
Maryam Abidi, Shima Fayaz, Pezhman Fard Esfahani
Background and aim: While the causes of thyroid cancer in most patients remain largely unknown, it has recently been reported that there may be links to particular chromosome regions. In particular, polymorphisms (SNPs) in the thyroglobulin (TG) gene could be susceptibility factors. Methods: In this case-control study, any association of the Asp1312Gly single nucleotide polymorphism (SNP) in the TG gene (rs2069556) with susceptibility to differentiated thyroid cancer (DTC) was investigated among 103 Iranian patients and 100 controls who had no history of any type of cancer...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28344687/disseminated-pancreatic-neuroendocrine-neoplasm-nen-with-an-uncommon-localisation-in-the-central-nervous-system-a-case-report
#3
Joanna Białkowska, Agnieszka Kolasińska-Ćwikła, Dorota Mroczkowska, Mariusz Sowa, Łukasz Grabarczyk, Wojciech Maksymowicz, Andrzej Cichocki, Jarosław B Ćwikła
BACKGROUND: Neuroendocrine neoplasms (NEN) are rare neoplasms that originate from neuroendocrine cells and are characterized by the potential of hormonal activity. Approximately 70% of these tumours are located in the gastrointestinal system (GI), followed by the bronchi, endocrine glands-like C cells of the thyroid (medullary carcinoma), the parasympathetic and sympathetic system (paragangliomas, pheochromocytoma) and other very rare locations. The prevalence of cerebral metastases in neuroendocrine tumours is estimated by various authors to be approximately 1...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28343733/low-risk-papillary-microcarcinoma-of-the-thyroid-a-review-of-active-surveillance-trials
#4
REVIEW
Y Ito, A Miyauchi, H Oda
Papillary microcarcinoma (PMC) of the thyroid is defined as papillary thyroid carcinoma (PTC) measuring ≤1 cm. Many autopsy studies on subjects who died of non-thyroidal diseases reported latent small thyroid carcinoma in up to 5.2% of the subjects. A mass screening study for thyroid cancer in Japanese adult women detected small thyroid cancer in 3.5% of the examinees. This incidence was close to the incidence of latent thyroid cancer and more than 1000 times the prevalence of clinical thyroid cancer in Japanese women reported at that time...
March 16, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28343399/analysis-of-postoperative-ultrasonography-surveillance-after-total-thyroidectomy-in-patients-with-papillary-thyroid-carcinoma-a-multicenter-study
#5
Inseon Ryoo, Dong Wook Kim, Chang Yoon Lee, Jung Yin Huh, Song Lee, Hye Shin Ahn, Jin Yong Sung
Background In papillary thyroid carcinoma (PTC) patients, postoperative ultrasonography (US) surveillance is recommended at intervals of six or 12 months even though evidence is weak. Purpose To determine the optimal interval of postoperative US surveillance in patients after total thyroidectomy for the treatment of PTC using multicenter data. Material and Methods A total of 1400 patients from seven tertiary hospitals who underwent total thyroidectomy for treatment of PTC were included. Based on a retrospective review of clinical and pathologic results, multiple factors were analyzed according to recurrence/persistence or no recurrence/persistence...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28343336/sunitinib-induced-hypothyroidism-predicts-progression-free-survival-in-metastatic-renal-cell-carcinoma-patients
#6
Anna Buda-Nowak, Jakub Kucharz, Paulina Dumnicka, Marek Kuzniewski, Roman Maria Herman, Aneta L Zygulska, Beata Kusnierz-Cabala
Sunitinib is a tyrosine kinase inhibitor (TKI) used in treatment of metastatic renal cell carcinoma (mRCC), gastrointestinal stromal tumors and pancreatic neuroendocrine tumors. One of the most common side effects related to sunitinib is hypothyroidism. Recent trials suggest correlation between the incidence of hypothyroidism and treatment outcome in patients treated with TKI. This study evaluates whether development of hypothyroidism is a predictive marker of progression-free survival (PFS) in patients with mRCC treated with sunitinib...
April 2017: Medical Oncology
https://www.readbyqxmd.com/read/28342873/relationships-of-braf-mutation-and-hmgb1-to-papillary-thyroid-carcinoma
#7
Xiaolei Guan, Ping Wang, Jingwei Chi, Shihua Zhao, Fei Wang
A poor papillary thyroid cancer (PTC) prognosis is strongly associated with the BRAF V600E mutation. During tumor progression, levels of the high mobility group box 1 (HMGB1) protein are often dysregulated. Results herein demonstrate that HMGB1 protein levels differ between tumor and adjacent non-tumor tissue and that HMGB1 mRNA levels were higher in wild-type BRAF PTC tissues than in BRAF V600E PTC tissues (2-△Ct 0.31 ± 0.25 vs. 0.16 ± 0.12; P < 0.05). HMGB1 protein levels also differed in the same manner (wild-type BRAF PTC tissues 0...
March 22, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28342000/efficacy-and-safety-of-percutaneous-ultrasound-guided-radiofrequency-ablation-for-treating-cervical-metastatic-lymph-nodes-from-papillary-thyroid-carcinoma
#8
Yang Guang, Yukun Luo, Yan Zhang, Mingbo Zhang, Nan Li, Ying Zhang, Jie Tang
PURPOSE: The aim of this study was to assess the effectiveness and safety of ultrasound guided percutaneous radiofrequency ablation (RFA) of cervical metastatic lymph nodes (LNs) from papillary thyroid carcinoma. METHODS: 54 metastatic LNs confirmed by percutaneous biopsy in 33 patients with previous total thyroidectomy and radioiodine therapy were enrolled in this retrospective study. US and contrast-enhanced ultrasound (CEUS) examinations were performed before ablation...
March 24, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28338500/differential-diagnosis-in-neuroendocrine-neoplasms-of-the-larynx
#9
Jennifer L Hunt, Alfio Ferlito, Henrik Hellquist, Alessandra Rinaldo, Alena Skálová, Pieter J Slootweg, Stefan M Willems, Antonio Cardesa
The differential diagnosis of neuroendocrine neoplasms of the larynx is broad and includes lesions of epithelial, mesenchymal, and neuroectodermal origin. These lesions have overlapping clinical and pathologic aspects and must be carefully considered in the differential diagnosis of laryngeal neoplasms. The prognosis and treatment are also different among these tumor types, which necessitates making these distinctions clinically. The current literature was reviewed to provide updated information regarding the epithelial-derived tumors, including carcinoid, atypical carcinoid, small cell neuroendocrine carcinomas, large cell neuroendocrine carcinoma, and squamous cell carcinoma with neuroendocrine component...
March 23, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28337585/background-gamma-radiation-and-childhood-cancer-in-germany-an-ecological-study
#10
Claudia Spix, Bernd Grosche, Martin Bleher, Peter Kaatsch, Peter Scholz-Kreisel, Maria Blettner
The relationship of low-dose background gamma radiation and childhood leukaemia was investigated in a number of studies. Results from these studies are inconclusive. Therefore, in the present study 25 years of German childhood cancer data were analyzed using interpolated background annual gamma dose rate per community in an ecological study. The main question was leukaemia; as exploratory questions we investigate central nervous system (CNS) tumours, thyroid carcinomas and diagnoses less likely to be related to radiation...
March 23, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28337299/poly-r-c-binding-protein-pcbp-1-expression-is-regulated-at-the-post-translation-level-in-thyroid-carcinoma
#11
Ming-Peng Zhang, Wei-San Zhang, Jin Tan, Ming-Hui Zhao, Lin-Juan Lian, Jie Cai
Poly r(C) binding protein (PCBP) 1 or heterogeneous ribonucleoprotein (hnRNP) E1 is a RNA binding protein that plays a vital role in a wide variety of biological processes. PCBP1 has been shown to function as a tumor suppressor by negatively regulating translation of pro-metastatic proteins in different cancers. Loss of PCBP1 expression or its Akt2-mediated phosphorylation at serine 43 residue has both been indicated to de-repress its regulation of EMT inducer proteins. Our previous work has established that PCBP1 functions as a tumor suppressor in thyroid cancer, where its translation is inhibited by microRNA-490-3p...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28335429/the-adverse-effect-of-hypertension-in-the-treatment-of-thyroid-cancer-with-multi-kinase-inhibitors
#12
REVIEW
Ole Vincent Ancker, Markus Wehland, Johann Bauer, Manfred Infanger, Daniela Grimm
The treatment of thyroid cancer has promising prospects, mostly through the use of surgical or radioactive iodine therapy. However, some thyroid cancers, such as progressive radioactive iodine-refractory differentiated thyroid carcinoma, are not remediable with conventional types of treatment. In these cases, a treatment regimen with multi-kinase inhibitors is advisable. Unfortunately, clinical trials have shown a large number of patients, treated with multi-kinase inhibitors, being adversely affected by hypertension...
March 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28335220/pde5-inhibitors-loaded-nanovesicles-physico-chemical-properties-and-in-vitro-antiproliferative-activity
#13
Roberta F De Rose, Maria Chiara Cristiano, Marilena Celano, Valentina Maggisano, Ada Vero, Giovanni Enrico Lombardo, Martina Di Francesco, Donatella Paolino, Diego Russo, Donato Cosco
Novel therapeutic approaches are required for the less differentiated thyroid cancers which are non-responsive to the current treatment. In this study we tested an innovative formulation of nanoliposomes containing sildenafil citrate or tadalafil, phosphodiesterase-5 inhibitors, on two human thyroid cancer cell lines (TPC-1 and BCPAP). Nanoliposomes were prepared by the thin layer evaporation and extrusion methods, solubilizing the hydrophilic compound sildenafil citrate in the aqueous phase during the hydration step and dissolving the lipophilic tadalafil in the organic phase...
May 18, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28332339/sonographic-and-cytologic-differences-of-niftp-from-infiltrative-or-invasive-encapsulated-follicular-variant-of-papillary-thyroid-carcinoma-a-review-of-179-cases
#14
REVIEW
Grace C H Yang, Karen O Fried, Theresa Scognamiglio
We reclassified 179 cases of the follicular variant (FV) of papillary thyroid carcinoma (PTC) into 72 (40.2%) noninvasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP), 37 (20.7%) encapsulated FVPTC with invasion (EFVPTC), and 70 (39.1%) infiltrative FVPTC (IFVPTC) without a capsule. In the NIFTP group, 5.6% cytology were hypercellular and the remainder low to moderate cellularity. PTC nuclei were absent in 18%, focally present in 37.5%, and diffusely present in 44.4%. In the EFVPTC group, 8...
March 22, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28332308/ceacam1-long-isoform-has-opposite-effects-on-the-growth-of-human-mastocytosis-and-medullary-thyroid-carcinoma-cells
#15
Chiyuki Ueshima, Tatsuki R Kataoka, Yusuke Takei, Masahiro Hirata, Akihiko Sugimoto, Mitsuyoshi Hirokawa, Yoshimichi Okayama, Richard S Blumberg, Hironori Haga
Carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) is expressed in a number of tumor cell types. The immunoreceptor tyrosine-based inhibitory motif (ITIM)-containing isoforms of this molecule which possess a long cytoplasmic tail (CEACAM1-L) generally play inhibitory roles in cell function by interacting with Src homology 2 domain-containing tyrosine phosphatase (SHP)-1 and/or SHP-2. Src family kinases (SFKs) are also known to bind to and phosphorylate CEACAM1-L isoforms. Here, we report that CEACAM1 was uniquely expressed at high levels in both human neoplastic mast cells (mastocytosis) and medullary thyroid carcinoma cell (MTC) lines, when compared with their expression in nonneoplastic mast cells or nonneoplastic C cells...
March 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28331529/detection-of-braf-mutation-in-the-cytocentrifugation-supernatant-fluid-from-fine-needle-aspiration-of-thyroid-lesions-may-enhance-the-diagnostic-yield
#16
Ashley E Brown, Khin Sandar Lim, George Corpus, Martha T Hustek, Tien Anh N Tran, Chung-Che Chang
OBJECTIVE: BRAF mutations using cellular DNA from fine-needle aspiration (FNA) specimens are commonly used to support the diagnosis of papillary thyroid carcinoma (PTC). The goal of this study was to preliminarily evaluate the diagnostic utility of detecting BRAF mutations in the routinely discarded FNA specimen supernatant fluid. MATERIALS AND METHODS: Seventy-eight FNAs of thyroid lesions were evaluated for BRAF mutations using both cellular and supernatant DNA...
2017: CytoJournal
https://www.readbyqxmd.com/read/28331494/an-approach-to-macroscopic-central-lymph-nodes-detected-during-surgery-in-patients-with-thyroid-micropapillary-carcinoma-should-we-resort-to-dissection
#17
Osman Kurukahvecioglu, Kursat Dikmen, Hasan Bostanci, Murat Akin, Ferit Taneri
Background. High-resolution ultrasonography and the ability to perform fine-needle aspiration biopsy even for nodules smaller than three millimeters have considerably increased the detection rate of thyroid micropapillary carcinoma (TMPC). Despite favorable prognosis, the prevalence of cervical lymph node metastases in patients with TMPC is approximately 30%. Aim. In this study, we aimed to determine the central lymph node metastasis rate and its relation to the characteristics of the tumor. Methods. One hundred nine patients who underwent surgery due to TMPC between December 2009 and January 2014 were analyzed retrospectively...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28331341/investigating-the-expression-effect-and-tumorigenic-pathway-of-padi2-in-tumors
#18
Wei Guo, Yabing Zheng, Bing Xu, Fang Ma, Chang Li, Xiaoqian Zhang, Yao Wang, Xiaotian Chang
BACKGROUND: Peptidylarginine deiminase (PAD) catalyzes the conversion of arginine residues to citrulline residues, termed citrullination. Recent studies have suggested that PAD isoform 2 (PADI2) plays an important role in tumors, although its tumorigenic effect and mechanism are largely unknown. MATERIALS AND METHODS: Immunohistochemistry and enzyme-linked immunosorbent assay (ELISA) were used to investigate the expression level of PADI2 in various tumor tissues and patient blood samples, respectively...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28331271/adenoid-cystic-carcinoma-of-trachea
#19
Ashish Varghese, Swati Suneha, John C Watkinson
Adenoid cystic carcinoma (ACC) is the second most common primary malignant tumor of the trachea, after squamous cell carcinoma. Patients present with upper airway obstructive symptoms and signs including dyspnoea, cough, haemoptysis, and stridor which are often insidious, delaying diagnosis and optimal management. Described here is an unusual case of primary ACC cervical trachea with concomitant micropapillary thyroid carcinoma (microPTC) in a middle-aged lady presenting with cough and breathing difficulty since 3 months...
February 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/28330699/unusual-case-of-tumor-of-unknown-origin-found-by-18-f-fdg-pet-ct-metastatic-clear-cell-carcinoma-of-the-thyroid-gland
#20
G Treglia, P Trimboli, V Zilioli, F Fulciniti, L Giovanella
No abstract text is available yet for this article.
March 18, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
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