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https://www.readbyqxmd.com/read/28549037/evaluation-of-a-dna-extraction-and-purification-protocol-using-archived-formalin-fixed-paraffin-embedded-tissues-for-braf-mutations-analysis-in-papillary-thyroid-microcarcinomas
#1
Adela Nechifor-Boilă, Andrada Loghin, Françoise Descotes, Myriam Decaussin-Petrucci, Angela Borda
The isolation of good quality genomic DNA from formalin-fixed, paraffin-embedded tissues is challenging, especially in cases of small tissue specimens. The aim of our study was to evaluate a DNA extraction protocol using formalin-fixed, paraffin-embedded tissues in our laboratory and apply this method to a series of papillary thyroid microcarcinomas (PTMCs). A total of 25 PTMCs and 3 papillary thyroid carcinoma control cases were included in the study. We assessed a DNA extraction protocol on the basis of a precipitation method (MasterPure DNA purification kit, Epicentre), according to the manufacturer's instructions...
May 25, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
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
#2
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/28546130/a-study-of-foxa1-expression-in-thyroid-tumors
#3
Daisuke Nonaka
FoxA1 regulates a variety of tissues during embryogenesis and early life. In thyroid, FoxA1 expression has recently been shown in C cells and medullary thyroid carcinomas but not in follicular cells. FoxA1 has also been proposed as potential oncogene in anaplastic thyroid carcinomas. However, FoxA1 expression has not been extensively investigated in a spectrum of thyroid non-neoplastic lesions and tumors. A variety of thyroid tumors and lesions and their morphologic mimics were stained with monoclonal anti-FoxA1 antibody...
May 22, 2017: Human Pathology
https://www.readbyqxmd.com/read/28545571/survival-and-prognostic-factors-for-survival-cancer-specific-survival-and-disease-free-interval-in-239-patients-with-hurthle-cell-carcinoma-a-single-center-experience
#4
Branisav Oluic, Ivan Paunovic, Zlatibor Loncar, Vladimir Djukic, Aleksandar Diklic, Milan Jovanovic, Zeljko Garabinovic, Nikola Slijepcevic, Branislav Rovcanin, Dusan Micic, Aleksandar Filipovic, Vladan Zivaljevic
BACKGROUND: Hurthle cell carcinoma makes up 3 to 5% of all thyroid cancers and is considered to be a true rarity. The aim of our study was to analyze clinical characteristics and survival rates of patients with Hurthle cell carcinoma. METHODS: Clinical data regarding basic demographic characteristics, tumor grade, type of surgical treatment and vital status were collected. Methods of descriptive statistics and Kaplan-Meier survival curves were used for statistical analysis...
May 25, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28545107/predictive-factors-of-right-paraesophageal-lymph-node-metastasis-in-papillary-thyroid-carcinoma-single-center-experience-and-meta-analysis
#5
Young Min Park, Sang Min Lee, Dong Won Kim, Sung-Chan Shin, Byung-Joo Lee
BACKGROUND: We performed this retrospective study to identify predictors of right paraesophageal lymph node metastasis, and reviewed previous studies related to this topic. METHODS: Between June 2005 and March 2015, 1107 patients were diagnosed with papillary thyroid carcinoma and underwent surgery at Pusan National University Hospital. RESULTS: Right paraesophageal lymph node metastasis was observed in 171 (15.4%) patients. Multivariate analyses showed that the risk of right paraesophageal metastasis was significantly associated with tumor size, location, a higher number of metastatic central lymph nodes, and lateral lymph node metastasis...
2017: PloS One
https://www.readbyqxmd.com/read/28545026/identification-of-novel-long-non-coding-rna-biomarkers-for-prognosis-prediction-of-papillary-thyroid-cancer
#6
Qiuying Li, Haihong Li, Lu Zhang, Chunming Zhang, Wentao Yan, Chao Wang
Papillary thyroid carcinoma (PTC) is the most frequent type of malignant thyroid tumor. Several lncRNA signatures have been established for prognosis prediction in some cancers. However, the prognostic value of lncRNAs has not been investigated in PTC yet. In this study, we performed genome-wide analysis of lncRNA expression profiles in a large cohort of PTC patients from The Cancer Genome Atlas and identified 111 differentially expressed lncRNAs between tumor and non-tumor samples and between recurrent and recurrence-free samples...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28544819/dual-malignancy-in-a-thyroid-papillary-thyroid-carcinoma-and-small-lymphocytic-lymphoma-a-report-of-a-case-with-a-cyto-histologic-correlation
#7
Omar I Ahmed, Ziyan T Salih
Papillary thyroid carcinoma (PTC) is the most common thyroid malignancy. Simultaneous involvement of the thyroid gland by multiple malignancies, is a rare occurrence. Similarly, primary thyroid lymphomas are also rare. We are reporting a rare case of a dual thyroid malignancy; PTC with secondary thyroid involvement by chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL), diagnosed on cytology and confirmed with flow cytometry, histology and immunohistochemistry. Imaging showed two hypermetabolic nodules, one in left parotid gland, and the other in the thyroid isthmus...
May 22, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28544601/the-impact-of-noninvasive-follicular-thyroid-neoplasm-with-papillary-like-nuclear-features-on-the-performance-of-the-afirma-gene-expression-classifier
#8
Jen-Fan Hang, William H Westra, David S Cooper, Syed Z Ali
BACKGROUND: A recent revision in thyroid tumor nomenclature has resulted in a change from a malignant diagnosis (noninvasive follicular variant of papillary thyroid carcinoma) to one that is nonmalignant (noninvasive follicular thyroid neoplasm with papillary-like nuclear features [NIFTP]). The objective of the current study was to evaluate the impact of this change on the performance of the Afirma gene expression classifier (GEC). METHODS: The authors retrospectively analyzed consecutive thyroid fine-needle aspiration specimens with indeterminate diagnoses on which GEC was performed...
May 24, 2017: Cancer
https://www.readbyqxmd.com/read/28544576/atypical-adenoma-of-the-thyroid-diagnosed-as-anaplastic-cancer-by-cytopathology
#9
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/28540691/expression-of-micrornas-in-thyroid-carcinoma
#10
Gaohong Zhu, Lijun Xie, Daniel Miller
MicroRNA (miRNA) are negative regulators of gene expression and subsequent protein production. This method of action translates into regulatory control over cellular processes, including development, signaling, metabolism, and apoptosis. A broad range of miRNA are shown to have abnormal expressions in thyroid cancers which could explain the pathology of tumor oncogenesis and disease progression. A review is conducted of the current research on miRNA dysregulation in thyroid cancers, including papillary thyroid carcinoma (PTC), follicular thyroid carcinoma (FTC), anaplastic thyroid cancer (ATC), and medullary thyroid carcinoma (MTC)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28537865/a-nodule-on-the-scalp-as-the-first-sign-of-extranodal-disease-in-medullary-thyroid-carcinoma
#11
Jose Ramon Ferreres-Riera, Antonia Vinyals-Rioseco, Rosa Maria Penin-Mosquera, Octavio Servitje-Bedate, Joaquim Marcoval-Caus, Jose Manuel Mascaro-Galy, Susana Puig-Sarda, Antonio Macaya-Pascual, Angels Fabra-Fres
Medullary carcinoma of the thyroid gland accounts for only 5-10% of thyroid carcinomas. Also, metastases to the skin of malignant tumors are infrequently (2-9% of patients). In the case herein reported in a 64-year old woman, a metastatic nodule on the scalp was the presenting clinical manifestation of a medullary thyroid carcinoma. A comprehensive review of the literature was conducted for similar cases using PubMed. Only 18 cases of cutaneous metastases of medullary thyroid carcinoma have been previously reported in the literature, but skin lesions were the presenting complaint of the thyroid neoplasm in only three...
May 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28537531/clinical-features-of-nivolumab-induced-thyroiditis-a-case-series-study
#12
Ichiro Yamauchi, Yoriko Sakane, Yorihide Fukuda, Toshihito Fujii, Daisuke Taura, Masakazu Hirata, Keisho Hirota, Yohei Ueda, Yugo Kanai, Yui Yamashita, Eri Kondo, Masakatsu Sone, Akihiro Yasoda, Nobuya Inagaki
BACKGROUND: The programmed cell death-1 (PD-1) pathway is a novel therapeutic target in immune checkpoint therapy for cancer. It consists of the PD-1 receptor and its two ligands, programmed death-ligand 1 (PD-L1) and programmed death-ligand 2 (PD-L2). Nivolumab is an anti-PD-1 monoclonal antibody approved for malignant melanoma, advanced non-small cell lung cancer, and advanced renal cell carcinoma in Japan. Thyrotoxicosis and hypothyroidism have both been reported in international phase 3 studies and national postmarketing surveillance of nivolumab in Japan...
May 24, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28536894/can-medullary-thyroid-carcinoma-arise-in-thyroglossal-duct-cysts-a-search-for-parafollicular-c-cells-in-41-resected-cases
#13
Tracy Stein, Paari Murugan, Faqian Li, Mohamed I El Hag
Thyroglossal duct cysts (TGDCs) are present in ~7% of adults and develop from the midline migratory tract between the foramen cecum and anatomic location of the thyroid. Thyroid tissue can be identified in 2/3 of TGDCs, and up to 1% develop associated malignancy, 90% of which are papillary thyroid carcinoma. Cases of follicular and anaplastic carcinoma have been documented, but there are no reports of medullary thyroid carcinoma arising in a TGDC. This is presumably due to the distinct embryologic origin of parafollicular C-cells, from which medullary carcinoma arises...
May 23, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28536479/circulating-microrna-214-and-126-as-potential-biomarkers-for-canine-neoplastic-disease
#14
Kazuki Heishima, Yukie Ichikawa, Kyoko Yoshida, Ryota Iwasaki, Hiroki Sakai, Takayuki Nakagawa, Yuiko Tanaka, Yuki Hoshino, Yasuhiko Okamura, Mami Murakami, Kohji Maruo, Yukihiro Akao, Takashi Mori
Circulating microRNAs in the blood may provide diagnostic and prognostic information about canine neoplastic diseases, and their profiles may be conserved between human and canine species. We performed RT-qPCR to obtain the profiles of circulating plasma microRNA-214 and -126 in total 181 cases of canine neoplastic diseases and healthy controls. MicroRNA-214 levels were high in 2 epithelial tumours (thyroid and mammary carcinomas) and 4 non-epithelial tumours (osteosarcoma, histiocytic sarcoma, chondrosarcoma, and hemangiosarcoma)...
May 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28535654/-expression-and-significance-of-nrf2-in-papillary-thyroid-carcinoma-and-thyroid-goiter
#15
W J Geng, L B Shan, J S Wang, N Li, Y M Wu
No abstract text is available yet for this article.
May 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28535653/-clinical-pathological-characteristics-of-resectable-papillary-thyroid-microcarcinoma
#16
C L Shi, Y Guo, Y C Lyu, Z A B Y S Nanding, W C Gao, T F Shi, H D Qin, S Y Liu
Objective: To investigate the difference of prognostic factors and recurrence rates between papillary thyroid microcarcinoma (PTMC) and lager papillary thyroid carcinoma (PTC) and analyze the clinical pathological characteristics of PTMC suitable for surgery. Methods: A retrospective analysis on the clinicopathological features, expression level of of v-raf murine sarcoma viral oncogene homolog B1 (BRAF) V600E gene mutation and pigment epithelium-derived factor (PEDF), and postoperative follow-up results of the 251 PTC patients who underwent surgical treatment from October 2011 to October 2013, including 169 cases with PTMC and 82 with lager PTC (Tumor diameter>1 cm)...
May 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28533654/psma-expression-in-multinodular-thyroid-neoplasm-on-simultaneous-ga-68-psma-pet-mri
#17
Amarnath Jena, Shuaib Zaidi, Vikas Kashyap, Abhishek Jha, Sangeeta Taneja
PSMA PET is increasingly being used in imaging of recurrent prostate carcinoma. A case with suspected recurrent Prostate carcinoma (PCa), raised PSA (Prostate specific antigen) and suspected spinal metastases was referred for whole body Ga-68-PSMA PET/MRI. The study revealed PSMA avid recurrent prostate mass and extensive osseous metastases. Abnormal PSMA uptake in the thyroid gland prompted USG-guided FNAC which revealed Hurthle cell neoplasm. Histopathological examination (HPE) of excised gland showed multiple Hurthle cell adenomas in both lobes of thyroid along with foci of papillary thyroid carcinoma which on immunohistochemistry were thyroglobulin positive and PSA negative...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533473/u-s-food-and-drug-administration-approval-summary-pembrolizumab-for-the-treatment-of-recurrent-or-metastatic-head-and-neck-squamous-cell-carcinoma-with-disease-progression-on-or-after-platinum-containing-chemotherapy
#18
Erin Larkins, Gideon M Blumenthal, Weishi Yuan, Kun He, Rajeshwari Sridhara, Sriram Subramaniam, Hong Zhao, Chao Liu, Jingyu Yu, Kirsten B Goldberg, Amy E McKee, Patricia Keegan, Richard Pazdur
On August 5, 2016, the U.S. Food and Drug Administration granted accelerated approval to pembrolizumab (KEYTRUDA injection, Merck Sharp & Dohme Corp., Kenilworth, NJ) for treatment of patients with recurrent or metastatic head and neck squamous cell carcinoma (HNSCC) with disease progression on or after platinum-containing chemotherapy. Approval was based on the objective response rate (ORR) and duration of response (DoR) in a cohort of patients in a nonrandomized multi-cohort trial (KEYNOTE-012) that included 174 patients with recurrent or metastatic HNSCC who had disease progression on or after platinum-containing chemotherapy...
May 22, 2017: Oncologist
https://www.readbyqxmd.com/read/28532605/risk-of-hypothyroidism-among-patients-with-nasopharyngeal-carcinoma-treated-with-radiation-therapy-a-population-based-cohort-study
#19
Chao-Yueh Fan, Chun-Shu Lin, Hsing-Lung Chao, Wen-Yen Huang, Yu-Fu Su, Kuen-Tze Lin, I-Ju Tsai, Chia-Hung Kao
BACKGROUND AND PURPOSE: This study aimed to assess the incidence and risk of hypothyroidism among patients with nasopharyngeal carcinoma (NPC) after radiation therapy (RT). MATERIAL AND METHODS: We identified 14,893 NPC patients and 16,105 other head and neck cancer (HNC) patients treated with RT without thyroidectomy from the National Health Insurance Research Database in Taiwan between 2000 and 2011. Each NPC patient was randomly frequency-matched with four individuals without NPC by age, sex, and index year...
May 19, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28530323/-papillary-thyroid-carcinoma-treatment-is-the-pendulum-shifting
#20
REVIEW
Sagit Stern, Elad Dagan, Eran E Alon, Ziv Gil, Gideon Bachar
The incidence of papillary thyroid carcinoma has been on the rise in the past few decades while the disease specific mortality remains stable. During prophylactic central neck dissection (level 6), an average of 60% positive occult lymph nodes metastasis are found, hence the justification for performing a prophylactic central neck dissection. The opponents for performing neck dissection claim that the disease specific mortality is low regardless of the operation and that adding a neck dissection will, significantly, increase surgical morbidity...
August 2016: Harefuah
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