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https://www.readbyqxmd.com/read/29156233/trans-cervical-resection-of-a-separate-substernal-goitre
#1
Henry To, Antara Karmakar, Stephen Farrell, Steve Manolas
INTRODUCTION: A separate substernal goitre which is not continuous with the main cervical thyroid proves a unique challenge for resection. A trans-cervical approach is preferred but may be hazardous due to the possibility of ectopic thyroid tissue with alternate blood supply. PRESENTATION OF CASE: A 72year old female who had a previous left hemithyroidectomy presents with a symptomatic central substernal thyroid mass. Following radiological work-up, the separate goitre was carefully removed via a trans-cervical approach and avoidance of sternotomy...
November 10, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29120527/castle-tumor-of-the-parotid-first-documented-case-literature-review-and-genetic-analysis-of-the-cancer
#2
Eugene Hung Chih Wong, Nora Tetter, Alexandar Tzankov, Laurent Muller
BACKGROUND: Carcinoma showing thymus-like elements (CASTLE) is a rare tumor that normally affects the thyroid gland and was thought to arise from either the remnants of the branchial pouch or the ectopic cervical thymic tissue. These tumors show strong immunopositivity for CD5, P63, and CD117. Most CASTLE of the thyroid gland is treated with surgery with or without adjuvant radiotherapy or chemotherapy. METHOD: A 55-year-old woman presented with a slow-growing right parotid mass...
November 9, 2017: Head & Neck
https://www.readbyqxmd.com/read/29118270/upregulation-of-pir-gene-expression-induced-by-human-papillomavirus-e6-and-e7-in-epithelial-oral-and-cervical-cells
#3
Diego Carrillo, Juan P Muñoz, Hernán Huerta, Gabriel Leal, Alejandro Corvalán, Oscar León, Gloria M Calaf, Ulises Urzúa, Enrique Boccardo, Julio C Tapia, Francisco Aguayo
The hallmark of high-risk human papillomavirus (HR-HPV)-related carcinogenesis is E6 and E7 oncogene overexpression. The aim of this work was to characterize epithelial oral and cervical cancer cells that express HR-HPV E6 and E7 oncoproteins. Transcriptomic assay using DNA microarrays revealed that PIR gene expression was detected in oral cells in an HR-HPV E6/E7-dependent manner. In addition, PIR was overexpressed in HPV-positive SiHa and Ca Ski cells, whereas it was undetectable in HPV-negative C33A cells...
November 2017: Open Biology
https://www.readbyqxmd.com/read/29078646/extended-thymectomy-by-a-cervical-incision-additional-to-bilateral-vats-approach
#4
Liang Xue, Xuguang Pang, Yongxing Zhang, Jianyong Ding
BACKGROUND: Video-assisted thoracoscopic surgery (VATS) in thymectomy has shown safe and effective with many advantages in myasthenia gravis (MG) patients with or without thymoma than transsternal approach. This video aims to show the procedure of extended thymectomy via a cervical incision additional to bilateral VATS approach in a MG patient with an early stage thymoma. METHODS: The patient was a 46-year-old male who had onset of symptoms of blurred vision, dysarthria and dysphagia for 10 months before administration...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29061638/motor-neurons-with-limb-innervating-character-in-the-cervical-spinal-cord-are-sculpted-by-apoptosis-based-on-the-hox-code-in-chick-embryo
#5
Katsuki Mukaigasa, Chie Sakuma, Tomoaki Okada, Shunsaku Homma, Takako Shimada, Keiji Nishiyama, Noboru Sato, Hiroyuki Yaginuma
In the developing chick embryo, a certain population of motor neurons (MNs) in the non-limb-innervating cervical spinal cord undergoes apoptosis between embryonic days 4 and 5. However, the characteristics of these apoptotic MNs remain undefined. Here, by examining the spatiotemporal profiles of apoptosis and MN subtype marker expression in normal or apoptosis-inhibited chick embryos, we found that this apoptotic population is distinguishable by Foxp1 expression. When apoptosis was inhibited, the survived Foxp1+ MNs showed characteristics of lateral motor column (LMC) neurons, which are of a limb-innervating subtype, suggesting that cervical Foxp1(+) MNs are the rostral continuation of LMC...
October 23, 2017: Development
https://www.readbyqxmd.com/read/29048632/microrna-1297-inhibits-metastasis-and-epithelial-mesenchymal-transition-by-targeting-aeg-1-in-cervical-cancer
#6
Zengyan Wang, Shanyang He, Peng Guo, Xu Guo, Jingxuan Zheng
Accumulating evidence has demonstrated that aberrant miRNAs contribute to cervical cancer (CC) development and progression. However, the roles of various miRNAs in CC remain to be determined. In the present study, we confirmed that a decreased miR-1297 expression was present in CC tissues and cell lines. Our clinical analysis revealed that the downregulated miR-1297 expression was significantly correlated with poor prognostic features including lymph node metastasis and lymphovascular space invasion. Moreover, we confirmed that miR-1297 was a novel independent prognostic marker for predicting the 5-year survival of CC patients...
September 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29023799/mir-214-activates-tp53-but-suppresses-the-expression-of-rela-ctnnb1-and-stat3-in-human-cervical-and-colorectal-cancer-cells
#7
Karthik Subramanian Chandrasekaran, Anusha Sathyanarayanan, Devarajan Karunagaran
High Mobility Group AT-hook 1 (HMGA1) was identified as a target of miR-214 in human cervical and colorectal cancers (CaCx and CRC) in a previous study. While the expression of miR-214 remains suppressed, HMGA1 behaves as a potent oncogene and plays crucial roles in several aberrant signalling pathways by interacting with intermediates like RELA, CTNNB1, STAT3, and TP53 in CaCx and CRC. Hypothetically, miR-214 should be able to regulate the stabilization of some of these intermediates through the regulation of HMGA1...
October 10, 2017: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/28978307/mir-216b-inhibits-cell-proliferation-by-targeting-foxm1-in-cervical-cancer-cells-and-is-associated-with-better-prognosis
#8
Shanyang He, Bing Liao, Yalan Deng, Chang Su, Jiuling Tuo, Jun Liu, Shuzhong Yao, Lin Xu
BACKGROUND: Our previous study showed FOXM1 expression was significantly up-regulated in cervical cancer, and was associated with poor prognosis. To clarify miRNAs-FOXM1 modulation pathways, in this study, we investigated the relationships between miR-216b and FOXM1 and the role of miR-216b in cell proliferation and prognosis of cervical cancer patients. METHODS: Western blotting and qPCR were used to determine expression of FOXM1, cell cycle related factors and miR-216b level...
October 4, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28974881/ectopic-salivary-gland-cyst-in-the-neck-association-with-congenital-plunging-ranula
#9
Nitin Pant, Ajay Kumar Verma, Tanvir Rashan Khan, Ashish Wakhlu
Congenital ranula is rare. We report a large, symptomatic, congenital plunging ranula associated with a salivary gland cyst in the neck. To the best of our knowledge, this is the first such reported case. Even though both the cysts had their origin from the sublingual gland, only the cervical cyst had a capsular covering. Herniation of a part of the immature sublingual gland anlage through a congenital mylohyoid defect, its separation, and subsequent maturation could explain this occurrence.
October 2017: Journal of Indian Association of Pediatric Surgeons
https://www.readbyqxmd.com/read/28968467/kdm6a-addiction-of-cervical-carcinoma-cell-lines-is-triggered-by-e7-and-mediated-by-p21cip1-suppression-of-replication-stress
#10
David R Soto, Christopher Barton, Karl Munger, Margaret E McLaughlin-Drubin
Expression of E7 proteins encoded by carcinogenic, high-risk human papillomaviruses (HPVs) triggers increased expression of the histone H3 lysine 27 demethylase KDM6A. KDM6A expression is necessary for survival of high-risk HPV E7 expressing cells, including several cervical cancer lines. Here we show that increased KDM6A in response to high-risk HPV E7 expression causes epigenetic de-repression of the cell cycle and DNA replication inhibitor p21CIP1, and p21CIP1 expression is necessary for survival of high-risk HPV E7 expressing cells...
October 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28955106/cervical-ectopic-pregnancy-in-resource-deprived-areas-a-rare-and-difficult-diagnosis
#11
Mohammed Mouhajer, Samuel Obed, Amalachukwu M Okpala
Ectopic pregnancy is a common cause of morbidity and mortality in women of reproductive age especially in resource deprived areas worldwide. Cervical ectopic pregnancy is a rare, life threatening form of ectopic pregnancy which needs a high index of suspicion for diagnosis, thus adding a complex twist to the dilemma faced by the obstetrician in resource deprived areas. A case of a cervical ectopic pregnancy which presented in a resource deprived area in a region in Ghana is discussed, and the difficulties encountered in diagnosis and management of this life threatening condition are outlined...
June 2017: Ghana Medical Journal
https://www.readbyqxmd.com/read/28944962/hpv-e6-protein-enriches-the-cd55-population-in-cervical-cancer-cells-promoting-radio-resistance-and-cancer-aggressiveness
#12
Thomas Ho-Yin Leung, Hermit Wai-Man Tang, Michelle Kwan-Yee Siu, David Wai Chan, Karen Kar-Loen Chan, Annie Nga-Yin Cheung, Hextan Yuen-Sheung Ngan
Accumulating evidence indicates that the human papilloma virus (HPV) E6 protein plays a crucial role in the development of cervical cancer. Sub-populations of cells that reside within tumors are responsible for tumor resistance to cancer therapy and recurrence. However, the identity of such cells residing in cervical cancer and their relationship with the HPV-E6 protein have not been identified. Here, we isolated sphere-forming cells, which exhibited self-renewal ability, from primary cervical tumors. Gene expression profiling revealed that CD55 was upregulated in primary cervical cancer sphere cells...
September 25, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28944148/metastatic-neuroendocrine-tumor-of-the-esophagus-with-features-of-medullary-thyroid-carcinoma
#13
Raymond M Fertig, Adam Alperstein, Carlos Diaz, Kyle D Klingbeil, Sameera S Vangara, Ryosuke Misawa, Jennifer Reed, Sudeep Gaudi
A 41-year-old female presented with a pedunculated mass in the upper esophagus and bilateral lymphadenopathy. Biopsies suggested a neuroendocrine tumor, possibly carcinoid, and ensuing imaging revealed cervical lymph node metastases. The esophageal mass was removed endoscopically and discovered by pathologists to closely resemble medullary thyroid carcinoma (MTC) on immunohistochemistry staining. Following surgery, further work up demonstrated very high serum calcitonin levels, suggestive of medullary thyroid carcinoma, however the thyroid gland was normal on ultrasound...
August 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/28929066/surgical-treatment-of-retrosternal-goitre
#14
Kiera Welman, Richard Heyes, Paras Dalal, Sarah Hough, Marciano Bunalade, Vladimir Anikin
This study aims to evaluate surgical approaches to the management of retrosternal goitre. Between 2004 and 2014, 35 patients (eight males; mean age 67.4 ± 10.9 years) with retrosternal goitre (mainly right-sided in 9, left-sided in 14 and bilateral in 12) underwent surgery. A palpable neck mass was found in 11 (31.4%), stridor in 10 (28.6%) and thyrotoxicosis in 4 (11.4%) cases. 4 (11.4%) patients were asymptomatic. Tracheal compression was detected radiologically in 27 (77.2%) patients with deviation in 18 (51...
September 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28838077/the-unique-microbiology-and-molecular-pathogenesis-of-mycoplasma-genitalium
#15
REVIEW
Chris L McGowin, Patricia A Totten
Mycoplasma genitalium is increasingly appreciated as a common cause of sexually transmitted disease syndromes, including urethritis in men and cervicitis, endometritis, pelvic inflammatory disease, and possibly preterm birth, tubal factor infertility, and ectopic pregnancy in women. Despite these disease associations, which parallel those of Chlamydia trachomatis and Neisseria gonorrhoeae, the mechanisms by which this pathogen elicits inflammation, causes cellular damage, and persists in its only natural host (humans) are unique and are not fully understood...
July 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28810526/microrna-374c-5p-regulates-the-invasion-and-migration-of-cervical-cancer-by-acting-on-the-foxc1-snail-pathway
#16
Yi Huang, Hao Huang, Mojuan Li, Xiuqing Zhang, Yusong Liu, Yifeng Wang
Some microRNAs (miRNAs) have been implicated in cervical cancer development and progression. However, the roles and mechanisms of several miRNAs in epithelial-mesenchymal transition (EMT) in cervical cancer remain poorly understood. Here, we conducted a microarray analysis and found that miR-374c-5p was most down-regulated miRNA in TGFβ1-treated cervical cancer cells compared to the expression in parental cell lines. Ectopic overexpression of miR-374c-5p inhibited cervical cancerl invasion and migration in TGFβ1- treated cervical cancer cells...
October 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28802022/microrna-492-overexpression-involves-in-cell-proliferation-migration-and-radiotherapy-response-of-cervical-squamous-cell-carcinomas
#17
Mei Liu, Jusheng An, Manni Huang, Liming Wang, Binbin Tu, Yan Song, Kai Ma, Yu Wang, Shuren Wang, Hongxia Zhu, Ningzhi Xu, Lingying Wu
MicroRNAs (miRNAs) are small non-coding RNA that target protein-coding mRNAs at the post-transcriptional level. The aim of this study was to define the role of miR-492 in cervical squamous cell carcinomas. After microRNA profiling and comparison, we firstly detected miR-492 expression in 104 tumor tissues biopsies derived from advanced staged (FIGO IIB-IIIB) cervical squamous cell carcinoma patients before receiving concomitant chemoradiotherapy and found miR-492 expression was significantly higher in the specimens that were sensitive to concomitant chemoradiotherapy, as compared with insensitive cancer specimens (p < 0...
August 12, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28795042/ectopic-cervical-thymoma-a-case-report-and-review
#18
Hyun Oh Park, Sung Hwan Kim, Seong Ho Moon, Jun Ho Yang, Dong Hoon Kang, Jeong Hee Lee
In the embryo, the thymus originates from the third and fourth pharyngeal pouches and migrates from the superior neck to the mediastinum. Ectopic cervical thymoma (ECT) is an extremely rare tumor that originates from ectopic tissue, and is caused by the aberrant migration of the embryonic thymus. Our patient was a 30-year-old woman who had a nodular lesion in the neck for several years. Ultrasonography and computed tomography were performed. She underwent surgery, and a histological examination resulted in a diagnosis of type AB thymoma...
August 2017: Korean Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28761619/ectopic-thyroid-tissue-unusual-differential-diagnosis-of-cervical-paraganglioma
#19
Houda Chahed, Ghada Kharrat, Rim Bechraoui, Jihene Marrakchi, Azza Mediouni, Mohamed Ben Amor, Rim Zainine, Nejeh Beltaief, Ghazi Besbes
Ectopic thyroid tissue (ETT) lateral to the midline is rare. Its occurrence in the carotid bifurcation is exceptional. We present a 45 years woman who consulted with a slow growing right cervical swelling. Clinical examination Ultrasonography, contrast enhanced CT and cervical MRI concluded to a paraganglioma. Intra-operatively, the tumor didn't have the characteristic aspect of a paraganglioma. Complete excision was performed. Histology concluded to an ectopic micro-vesicular thyroid adenoma.Previous literature was reviewed to summarize clinical and radiologic characteristics of such rare entity...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28731196/microrna-106a-promotes-cell-migration-and-invasion-by-targeting-tissue-inhibitor-of-matrix-metalloproteinase-2-in-cervical-cancer
#20
Xia Li, Qi Zhou, Ling Tao, Chunxia Yu
Increasing evidence has demonstrated that miRNAs play a critical role in tumor development and progression. Previous studies have revealed that miR-106a is abnormally expressed in various cancers. However, its function and underlying mechanism in cervical cancer (CC) remains unknown. In this study, we confirmed that the expression of miR-106a was significantly upregulated in both CC cell lines and tissues by qRT-PCR. The increased expression of miR-106a was obviously associated with adverse prognostic features...
July 18, 2017: Oncology Reports
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