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thyroid papillary carcinoma

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https://www.readbyqxmd.com/read/28431188/t-cell-receptor-%C3%AE-chain-repertoire-analysis-reveals-the-association-between-neoantigens-and-tumour-infiltrating-lymphocytes-in-multifocal-papillary-thyroid-carcinoma
#1
Zheming Lu, Chaoting Zhang, Jindong Sheng, Jing Shen, Baoguo Liu
To explore whether a few non-synonymous somatic mutations could induce activation and proliferation of neoantigen-specific tumour-infiltrating lymphocytes (TILs) in tumours with low mutation rates, we analysed a patient with multifocal papillary thyroid carcinoma (seven non-contiguous cancer foci) to investigate the relationship between neoantigens and TILs. These seven foci had a few or no non-synonymous somatic mutations; moreover, multiple loci had similar or different spectra of mutations. We used high-throughput sequencing of the rearranged genes in T cell receptor β-chain (TCRβ) to reveal the basic characteristics of T cells in seven tumour foci and matched adjacent normal tissue...
April 21, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28430650/the-p-g534e-variant-of-habp2-is-not-associated-with-sporadic-papillary-thyroid-carcinoma-in-a-polish-population
#2
Artur Kowalik, Danuta Gąsior-Perczak, Martyna Gromek, Monika Siołek, Agnieszka Walczyk, Iwona Pałyga, Małgorzata Chłopek, Janusz Kopczyński, Ryszard Mężyk, Aldona Kowalska, Stanisław Góźdź
Thyroid cancer is one of the most frequently diagnosed cancers of the endocrine system. There are no known genetic risk factors for non-medullary thyroid cancer, other than a small number of hereditary syndromes; however, approximately 5% of non-medullary thyroid cancer, designated familial non-medullary thyroid cancer, exhibits heritability. The p.G534E (c.1601G>A) variant of HABP2 was recently reported as a risk factor for familial non-medullary thyroid cancer, including papillary thyroid carcinoma. We analyzed the incidence of the c...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429089/the-effectiveness-of-prophylactic-modified-neck-dissection-for-reducing-the-development-of-lymph-node-recurrence-of-papillary-thyroid-carcinoma
#3
Yasuhiro Ito, Akira Miyauchi, Takumi Kudo, Minoru Kihara, Mitsuhiro Fukushima, Akihiro Miya
AIM: The most frequent recurrence site of papillary thyroid carcinoma (PTC) is the cervical lymph nodes. The introduction of an electric linear probe for use with ultrasonography in 1996 improved preoperative lateral neck evaluations. Before 2006, however, our hospital routinely performed prophylactic modified neck dissection (p-MND) for N0 or N1a PTCs >1 cm to prevent node recurrence. In 2006, we changed our policy and the indications for p-MND to PTCs >3 cm and/or with significant extrathyroid extension...
April 20, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28427206/mir-146a-and-mir-146b-promote-proliferation-migration-and-invasion-of-follicular-thyroid-carcinoma-via-inhibition-of-st8sia4
#4
Wei Ma, Xuzi Zhao, Leilei Liang, Guangzhi Wang, Yanyan Li, Xiaolong Miao, Yongfu Zhao
Follicular thyroid carcinoma (FTC) is a more aggressive form of thyroid cancer than the common papillary type. Alpha-2,8-sialyltransferase (ST8SIA) family members are expressed in various cancers and may be associated with FTC progression. In this study, we measured ST8SIA family expression in two FTC cell lines with different invasive potentials (FTC-133 and FTC-238) and Nthy-ori 3-1 cell lines, as well as FTC and normal thyroid tissues. ST8SIA4 was downregulated in the highly invasive FTC-238 cells and FTC tissues...
March 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28425432/angiogenic-and-lymphangiogenic-profiles-in-histological-variants-of-papillary-thyroid-carcinoma
#5
Vesna Skuletic, Gordana D Radosavljevic, Jelena Pantic, Bojana Simovic Markovic, Ivan Jovanovic, Nikola Jankovic, Dusica Petrovic, Andra Jevtovic, Radan Dzodic, Nebojsa Arsenijevic
INTRODUCTION    Papillary thyroid carcinoma (PTC) is a well-differentiated tumor that occurs in several histological variants whose biological behaviors remain unclear. Angiogenesis and lymphangiogenesis are critical processes that enable tumor progression.  OBJECTIVES    The purpose of this study was to evaluate the angiogenic and lymphangiogenic phenotypes of PTC considering the differences between histological variants. PATIENTS AND METHODS    Angiogenic and lymphangiogenic profiles were analyzed by microvascular density (MVD) and lymphovascular density (LVD) determination in 73 cases of PTC using immunohistochemistry...
April 20, 2017: Polish Archives of Internal Medicine
https://www.readbyqxmd.com/read/28425211/importance-of-cytological-subclassification-of-thyroid-nodules-with-bethesda-category-iii-cytology-aus-flus-into-architectural-atypia-only-and-nuclear-atypia-a-prospective-study
#6
Pedro Weslley Rosario, Maria Regina Calsolari
BACKGROUND: The objective of this study was to compare two cytological subcategories of thyroid nodules with Bethesda category III initial cytology. METHODS: This was a prospective study. All patients with thyroid nodules > 1 cm were eligible and 98 patients with category III cytology were selected. Cytology was subcategorized into architectural atypia only (AA, n = 45) and nuclear atypia (NA, n = 53). All patients underwent a second fine-needle aspiration (FNA)...
April 19, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28424236/hyalinizing-trabecular-tumour-of-the-thyroid-fine-needle-aspiration-cytological-diagnosis-and-correlation-with-histology
#7
REVIEW
Chiara Saglietti, Simonetta Piana, Stefano La Rosa, Massimo Bongiovanni
Hyalinizing trabecular tumour (HTT) is a rare thyroid neoplasm of follicular cell origin characterised by a trabecular growth pattern and prominent intratrabecular and intertrabecular hyalinisation. These peculiar histological features allow the prompt recognition of this neoplasm in surgical specimens. However, cytological diagnosis of HTT remains elusive and misleading because of overlapping characteristics with other thyroid tumours, particularly papillary thyroid carcinoma (PTC), medullary thyroid carcinoma (MTC) and the newly described non-invasive follicular thyroid neoplasm with papillary-like nuclear features (NIFTP)...
April 19, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28423638/her-inhibitor-promotes-braf-mek-inhibitor-induced-redifferentiation-in-papillary-thyroid-cancer-harboring-brafv600e
#8
Lingxiao Cheng, Yuchen Jin, Min Liu, Maomei Ruan, Libo Chen
Redifferentiation therapy with BRAF/MEK inhibitors to facilitate treatment with radioiodine represents a good choice for radioiodine-refractory differentiated thyroid carcinoma, but recent initial clinical outcomes were modest. MAPK rebound caused by BRAF/MEK inhibitors-induced activation of HER2/HER3 is a resistance mechanism, and combination with HER inhibitor to prevent MAPK rebound may sensitize BRAFV600E-mutant thyroid cancer cells to redifferentiation therapy. To evaluate if inhibiting both BRAF/MEK and HER can produce stronger redifferetiation effect, we tested the effects of BRAF/MEK inhibitor dabrafenib/selumetinib alone or in combination with HER inhibitor lapatinib on the expression and function of iodine- and glucose-handling genes in BRAFV600E-positive BCPAP and K1 cells, using BHP 2-7 cells harboring RET/PTC1 rearrangement as control...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423545/hobnail-variant-of-papillary-thyroid-carcinoma-molecular-profiling-and-comparison-to-classical-papillary-thyroid-carcinoma-poorly-differentiated-thyroid-carcinoma-and-anaplastic-thyroid-carcinoma
#9
Lianghong Teng, Wanglong Deng, Junliang Lu, Jing Zhang, Xinyu Ren, Huanli Duan, Shannon Chuai, Feidie Duan, Wei Gao, Tao Lu, Huanwen Wu, Zhiyong Liang
BACKGROUND: As a rare but aggressive papillary thyroid carcinoma (PTC) variant, the genetic changes of hobnail variant of PTC (HVPTC) are still unclear. RESULTS: The prevalence of HVPTC was 1.69% (18/1062) of all PTC diagnosed in our cohort. 73 samples from 55 patients (17 HVPTC, 26 CPTC, 7 PDTC and 5 ATC) were successfully analyzed using targeted NGS with an 18-gene panel. Thirty-seven mutation variant types were identified among 11 genes. BRAF V600E mutation was the most common mutation, which is present in almost all HVPTC samples (16/17, 94%), most CPTC samples (20/26, 77%), and none of the ATC and PDTC samples...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28419762/hobnail-variant-of-papillary-thyroid-carcinoma-a-case-with-an-unusual-presentation
#10
Mohammed T Lilo, Justin A Bishop, Syed Z Ali
Variants of papillary thyroid carcinoma (PTC) account for up to 25% of the cases, some of which are proven to be associated with aggressive clinical behavior such as tall cell and columnar cell variants. Hobnail variant of PTC (HVPTC) is recently described as a rare and aggressive variant of PTC. Herein, we are reporting a case of HVPTC in a patient who presented with hemoptysis and an intratracheal blood clot that was aspirated and submitted for cytopathological examination. Cytomorphology displayed neoplastic cells with profound micropapillary architecture, elongated nuclei, and prominent hobnail configuration...
April 16, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28418993/solid-papillary-breast-carcinomas-resembling-the-tall-cell-variant-of-papillary-thyroid-neoplasms-a-unique-invasive-tumor-with-indolent-behavior
#11
Maria P Foschini, Sofia Asioli, Susan Foreid, Gabor Cserni, Ian O Ellis, Vincenzo Eusebi, Juan Rosai
Thirteen cases of invasive solid papillary breast carcinomas resembling the tall cell variant of papillary thyroid neoplasms (BPTC) are reported here. Some cases had long-term follow-up. BPTC is a special type of primary breast neoplasm showing a triple-negative profile but low aggressive potential. Knowledge on BPTC is still scanty; therefore, the aim of the present paper was to report on the features of an additional 13 cases. All the patients were female individuals, and the mean age at presentation was 62...
April 17, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28417935/diagnostic-limitation-of-fine-needle-aspiration-fna-on-indeterminate-thyroid-nodules-can-be-partially-overcome-by-preoperative-molecular-analysis-assessment-of-ret-ptc1-rearrangement-in-braf-and-ras-wild-type-routine-air-dried-fna-specimens
#12
Young Sin Ko, Tae Sook Hwang, Ja Yeon Kim, Yoon-La Choi, Seung Eun Lee, Hye Seung Han, Wan Seop Kim, Suk Kyeong Kim, Kyoung Sik Park
Molecular markers are helpful diagnostic tools, particularly for cytologically indeterminate thyroid nodules. Preoperative RET/PTC1 rearrangement analysis in BRAF and RAS wild-type indeterminate thyroid nodules would permit the formulation of an unambiguous surgical plan. Cycle threshold values according to the cell count for detection of the RET/PTC1 rearrangement by real-time reverse transcription-polymerase chain reaction (RT-PCR) using fresh and routine air-dried TPC1 cells were evaluated. The correlation of RET/PTC1 rearrangement between fine-needle aspiration (FNA) and paired formalin-fixed paraffin-embedded (FFPE) specimens was analyzed...
April 12, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28417186/endoscopic-central-lymph-node-dissection-via-breast-combined-with-oral-approach-for-papillary-thyroid-carcinoma-a-preliminary-study
#13
Guo-Yang Wu, Jin-Bo Fu, Fu-Sheng Lin, Ye-Zhe Luo, En-de Lin, Wei Yan
OBJECTIVE: To investigate the feasibility and necessity of endoscopic thyroidectomy with central lymph node dissection via the combined breast and trans-oral approaches. METHODS: Six patients with papillary thyroid carcinoma who underwent endoscopic total thyroidectomy with central node dissection via combined breast and trans-oral approaches from November 2014 to January 2015 in Zhongshan Hospital, Xiamen University, were analyzed. RESULTS: After completion of endoscopic central lymph node dissection via the traditional breast approach, eight pieces of lymph nodes could still be dissected via the trans-oral approach...
April 17, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28413206/differential-diagnostic-significance-of-hbme-1-ck19-and-s100-in-various-thyroid-lesions
#14
S Palo, D S Biligi
OBJECTIVE: Due several overlapping histomorphological features and pitfalls in thyroid pathology, there is need to establish a panel of immunomarkers that would aid in proper diagnosis. This study was carried out to investigate the ability of HBME-1, CK19, and S100 in differentiating between hyperplastic, benign and malignant thyroid lesions. MATERIALS AND METHODS: Immunohistochemical analysis of 60 thyroidectomy specimens (10 hyperplastic nodules, 14 follicular adenomas and 36 malignant thyroid neoplasms) was carried out...
April 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/28413203/nuclear-morphometry-and-texture-analysis-on-cytological-smears-of-thyroid-neoplasms-a-study-of-50-cases
#15
L Deka, S Gupta, R Gupta, K Gupta, C J Kaur, S Singh S
BACKGROUND: Fine needle aspiration cytology (FNAC) is a reliable and reproducible diagnostic technique for thyroid lesions with certain limitations. Computed morphometric methods have been introduced with a view to improve the diagnostic yield of thyroid aspirates. However, a review of the existing literature revealed conflicting reports regarding morphometric parameters in thyroid neoplasms. MATERIALS AND METHODS: This study included 50 cases of thyroid lesions (20 cases of colloid goitre, 15 of follicular adenoma, 5 of follicular carcinoma and 10 papillary carcinomas)...
April 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/28412368/hsp90-inhibitor-nvp-auy922-induces-cell-apoptosis-by-disruption-of-the-survivin-in-papillary-thyroid-carcinoma-cells
#16
Jinhao Liu, Wei Sun, Wenwu Dong, Zhihong Wang, Yuan Qin, Ting Zhang, Hao Zhang
Heat shock protein 90 (HSP90) is a molecular chaperone required for maintaining the stability and function of signal proteins that plays an important role in promoting the growth and survival of cancer cells. The incidence of papillary thyroid carcinoma (PTC) has been increasing in recent years. The effect of the novel non-geldanamycin HSP90 inhibitor NVP-AUY922 on apoptosis of papillary thyroid carcinoma cells has not been investigated. The influence of AUY922 on the survival of PTC cell lines K1 and IHH4 was evaluated...
April 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28411177/expression-of-mrp1-and-abcg2-is-associated-with-adverse-clinical-outcomes-of-the-papillary-thyroid-carcinoma-with-a-solid-component
#17
Ryuji Ohashi, Kiyoko Kawahara, Shigeki Namimatsu, Ritsuko Okamura, Takehito Igarashi, Iwao Sugitani, Zenya Naito
Solid variant of papillary thyroid carcinoma is characterized by a solid component (SC) retaining classical cytological features of papillary thyroid carcinoma (PTC). Despite some controversies, PTC cases with SC (PTCSC) have poor prognosis compared to well-differentiated PTC. We investigated if cancer stem cells (CSC) may have a role in pathogenesis of PTCSC. PTCSC tumors (n=27) was histologically represented by mixture of papillary component (PC) and varying degree of SC involving 10-85% of the tumor. Immunohistochemical expression of CSC markers ABCG2 and MRP1, and HBME1 and CK19 was compared between SC and PC within each tumor in association with clinicopathological parameters...
April 11, 2017: Human Pathology
https://www.readbyqxmd.com/read/28410848/improving-access-to-image-guided-procedures-at-an-integrated-rural-critical-access-hospital-ultrasound-guided-thyroid-biopsy-program
#18
Thang Q Le, Yadiel Sánchez, Alexander S Misono, Sanjay Saini, Anand M Prabhakar
PURPOSE: Critical access hospitals face difficulty providing all services locally and may need to refer patients off-site for additional care. Providing on-site minimally invasive biopsies, may obviate visits to tertiary or quaternary care centers. This study aims to assess feasibility and outcomes of an ultrasound-guided thyroid biopsy program in a critical access hospital. METHODS: In this HIPAA compliant, IRB approved study, the Interventional Radiology (IR) database of a 19-bed, island, rural, critical access hospital without onsite pathology services affiliated with our quaternary care institution was retrospectively reviewed to identify all thyroid biopsies that were performed on site since inception of the service in April 2014 through August 2016...
February 16, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28409262/radioguided-occult-lesion-localization-for-locally-recurrent-thyroid-carcinoma
#19
Mehmet Ali Gulcelik, Niyazi Karaman, Lutfi Dogan, Ilgın Sahiner, Gokhan Giray Akgul, Yavuz Selim Kahraman, Gulin Ucmak Vural
The aim of this study was to present our experiences with patients operated on for the recurrence of papillary thyroid cancer with the combined use of preoperative ultrasonographic mapping and radioguided occult lesion localization (ROLL). Twenty patients who had already undergone total thyroidectomy and central/lateral neck dissection for papillary thyroid carcinoma were reoperated on due to locoregional metastasis. The patients with proven recurrences and high Tg wash-out levels in cytopathologic aspirates were operated on...
April 13, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28408701/low-grade-mucoepidermoid-tumor-of-parotid-gland-presenting-as-focal-asymmetry-in-the-follow-up-radioiodine-scan-in-a-patient-of-differentiated-papillary-carcinoma-of-thyroid
#20
Chinna Naik, Sandip Basu
Low grade mucoepidermoid tumor of the right parotid gland presenting as focal uptake in the follow-up whole body iodine scan in a patient of differentiated papillary carcinoma of thyroid 1 year after successful ablation is presented in this report. Following surgical excision, the histopathology was proven. The illustrated case represents false positive focal accumulation of (131)I in low grade mucoepidermoid carcinoma of the salivary gland that arose early in the follow-up course in differentiated thyroid carcinoma post-radioiodine (RAI)...
April 13, 2017: Journal of Nuclear Medicine Technology
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