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Oral cavity cancer

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https://www.readbyqxmd.com/read/27913065/hpv-status-cancer-stem-cell-marker-expression-hypoxia-gene-signatures-and-tumour-volume-identify-good-prognosis-subgroups-in-patients-with-hnscc-after-primary-radiochemotherapy-a-multicentre-retrospective-study-of-the-german-cancer-consortium-radiation-oncology
#1
Annett Linge, Fabian Lohaus, Steffen Löck, Alexander Nowak, Volker Gudziol, Chiara Valentini, Cläre von Neubeck, Martin Jütz, Inge Tinhofer, Volker Budach, Ali Sak, Martin Stuschke, Panagiotis Balermpas, Claus Rödel, Anca-Ligia Grosu, Amir Abdollahi, Jürgen Debus, Ute Ganswindt, Claus Belka, Steffi Pigorsch, Stephanie E Combs, David Mönnich, Daniel Zips, Frank Buchholz, Daniela E Aust, Gustavo B Baretton, Howard D Thames, Anna Dubrovska, Jan Alsner, Jens Overgaard, Mechthild Krause, Michael Baumann
OBJECTIVE: To investigate the impact of the tumour volume, HPV status, cancer stem cell (CSC) marker expression and hypoxia gene signatures, as potential markers of radiobiological mechanisms of radioresistance, in a contemporary cohort of patients with locally advanced head and neck squamous cell carcinoma (HNSCC), who received primary radiochemotherapy (RCTx). MATERIALS AND METHODS: For 158 patients with locally advanced HNSCC of the oral cavity, oropharynx or hypopharynx who were treated at six DKTK partner sites, the impact of tumour volume, HPV DNA, p16 overexpression, p53 expression, CSC marker expression and hypoxia-associated gene signatures on outcome of primary RCTx was retrospectively analyzed...
November 29, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27906459/integrative-genomic-analysis-identifies-ancestry-related-expression-quantitative-trait-loci-on-dna-polymerase-%C3%AE-and-supports-the-association-of-genetic-ancestry-with-survival-disparities-in-head-and-neck-squamous-cell-carcinoma
#2
Meganathan P Ramakodi, Karthik Devarajan, Elizabeth Blackman, Denise Gibbs, Danièle Luce, Jacqueline Deloumeaux, Suzy Duflo, Jeffrey C Liu, Ranee Mehra, Rob J Kulathinal, Camille C Ragin
BACKGROUND: African Americans with head and neck squamous cell carcinoma (HNSCC) have a lower survival rate than whites. This study investigated the functional importance of ancestry-informative single-nucleotide polymorphisms (SNPs) in HNSCC and also examined the effect of functionally important genetic elements on racial disparities in HNSCC survival. METHODS: Ancestry-informative SNPs, RNA sequencing, methylation, and copy number variation data for 316 oral cavity and laryngeal cancer patients were analyzed across 178 DNA repair genes...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27906094/decreasing-loco-regional-recurrence-for-oral-cavity-cancer-with-total-mohs-margins-technique
#3
Mathieu Bergeron, Pierre Gauthier, Nathalie Audet
BACKGROUND: The conventional technique for cancer resection margin analysis studies only 0.1% of the surgical margins. Complete frozen section margins - also known as Mohs margins - allows for analysis of 100% of the surgical margins. METHODS: The objective of our study is to compare oral cavity cancer loco-regional recurrence rates when treated by total frozen sections technique (Total Mohs margins) versus conventional margins. We conducted a multicenter retrospective cohort chart review...
December 1, 2016: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/27903834/saliva-diagnostics-current-views-and-directions
#4
Karolina Elżbieta Kaczor-Urbanowicz, Carmen Martin Carreras-Presas, Katri Aro, Michael Tu, Franklin Garcia-Godoy, David Tw Wong
In this review, we provide an update on the current and future applications of saliva for diagnostic purposes. There are many advantages of using saliva as a biofluid. Its collection is fast, easy, inexpensive, and non-invasive. In addition, saliva, as a "mirror of the body," can reflect the physiological and pathological state of the body. Therefore, it serves as a diagnostic and monitoring tool in many fields of science such as medicine, dentistry, and pharmacotherapy. Introduced in 2008, the term "Salivaomics" aimed to highlight the rapid development of knowledge about various "omics" constituents of saliva, including: proteome, transcriptome, micro-RNA, metabolome, and microbiome...
November 29, 2016: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27900251/salivary-biomarkers-in-oral-squamous-cell-carcinoma-an-insight
#5
REVIEW
T Radhika, Nadeem Jeddy, S Nithya, R M Muthumeenakshi
Oral cancer refers to the malignancies that occur in the oral cavity, lip and pharynx with 90% of oral cancers being squamous cell carcinomas (OSCC). OSCC has the highest mortality ratio compared to other carcinomas. Although oral cavity is easily accessible, most oral cancers are detected at a later stage leading to lower survival rates. Early detection of OSCC is a key factor in improving the prognosis and survival rate of the patient. Rapid advancement in the field of diagnosis has enabled early diagnosis of many potentially malignant conditions even before its clinical manifestations...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27896820/ppar%C3%AE-targeted-oral-cancer-treatment-and-additional-utility-of-genomics-analytic-techniques
#6
Nathan Handley, Jacob Eide, Randall Taylor, Beverly Wuertz, Patrick Gaffney, Frank Ondrey
OBJECTIVE: Peroxisome proliferator-activated receptor γ (PPARγ) agonists have been shown to have anti-proliferative, anti-angiogenic, and proapoptotic effects, leading to interest in their use as cancer therapeutics. Pioglitazone, a U.S. Food and Drug Administration-approved type II diabetes medication and PPARγ agonist, may have a role in adjuvant head-and-neck squamous cell carcinoma treatment or prevention. Therefore, the purpose of this study was: 1) to treat oral cavity cancer cells with the PPARγ activator, pioglitazone, to analyze gene expression changes; and 2) to compare those changes with our preexisting genomic data for development of hypothesis-driven additional basic and clinical studies...
November 29, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27896513/clinical-outcomes-of-taiwanese-patients-with-ct4-oral-cavity-squamous-cell-carcinoma-toward-the-identification-of-the-optimal-initial-treatment-approach-for-ct4b-patients
#7
Chun-Ta Liao, Yu-Wen Wen, Shu Ru Lee, Tsang-Wu Liu, Sen-Tien Tsai, Ming-Hsui Tsai, Jin-Ching Lin, Pei-Jen Lou, Pen-Yuan Chu, Yi-Shing Leu, Kuo-Yang Tsai, Shyuang-Der Terng, Tsung-Ming Chen, Cheng-Hsu Wang, Chih-Yen Chien, Wen-Cheng Chen, Li-Yu Lee, Chien-Yu Lin, Hung-Ming Wang, Shu-Hang Ng, Chih-Hung Lin, Tuan-Jen Fang, Shiang-Fu Huang, Chung-Jan Kang, Kai-Ping Chang, Lan Yan Yang, Tzu-Chen Yen
BACKGROUND: The National Comprehensive Cancer Network guidelines recommend that patients with oral cavity squamous cell carcinoma (OSCC) and cT4b disease should be either included in clinical trials or treated with a nonsurgical approach. However, surgery may be feasible in selected patients with adequate safety margins. Using the nationwide Taiwanese Cancer Registry Database, we examined the prognosis of cT4b OSCC patients in relation to their treatment approach. METHODS: Of the 18,910 patients with previously untreated first primary OSCC identified between 2004 and 2010, 492 (2...
November 28, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27895920/pd1-pd-l1-inhibition-as-a-potential-radiosensitizer-in-head-and-neck-squamous-cell-carcinoma-a-case-report
#8
Misako Nagasaka, Mark Zaki, Harold Kim, S Naweed Raza, George Yoo, Ho-Sheng Lin, Ammar Sukari
BACKGROUND: Immunotherapy targeting the checkpoint PD1 (programmed cell death protein 1) or PDL1 (programmed death ligand 1) has led to advances in the treatment of melanoma and non-small cell lung cancer (NSCLC). The use of such therapies has also been introduced into the treatment of other malignancies, including head and neck cancer. The combined effects of checkpoint inhibitors and anti-PD1(L1) antibodies and radiation therapy have not yet been sufficiently investigated. CASE PRESENTATION: We report a case of locally relapsed non-resectable oral cavity squamous cell carcinoma, with excellent local control after pembrolizumab (MK3475) followed by radiotherapy...
2016: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/27891442/a-retrospective-evaluation-of-clinical-profile-of-second-primary-head-and-neck-cancer
#9
Paramjeet Kaur, Nupur Bansal, J Vijaya Kumar, Anil Khurana, Ashok Chauhan
INTRODUCTION: Incidence of Second Primary Malignancy (SPM) after successful treatment of primary is increasing and may cause the problem for optimal treatment. AIM: This study was conducted retrospectively to analyse incidence, disease free survival between malignancies, pattern of treatment and outcome. MATERIALS AND METHODS: Sixteen out of 22 patients of previously treated cases of head and neck cancer those develop SPM of head and neck region managed over a period of January 2012 to December 2015 in Department of Radiotherapy-II, Pt...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27891304/metastasis-to-the-oral-soft-tissues-a-review-of-412-cases
#10
REVIEW
Soussan Irani
The present review article analyzes the characteristics of metastases to the oral soft tissues from 1937 to 2015. An extensive literature search was performed. All variables such as age, gender, and primary and secondary tumor sites were analyzed. Metastases to the major salivary glands were not included in this review. In general, there were 412 metastatic lesions developed in the oral soft tissues. The male-to-female ratio was approximately 1.8:1. The mean age of the patients at diagnosis was 58. The lung was the most common primary site and the gingiva was the most common metastatic site...
September 2016: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/27889184/gec-estro-acrop-recommendations-for-head-neck-brachytherapy-in-squamous-cell-carcinomas-1st-update-improvement-by-cross-sectional-imaging-based-treatment-planning-and-stepping-source-technology
#11
György Kovács, Rafael Martinez-Monge, Ashwini Budrukkar, Jose Luis Guinot, Bengt Johansson, Vratislav Strnad, Janusz Skowronek, Angeles Rovirosa, Frank-André Siebert
The Head and Neck Working Group of the GEC-ESTRO (Groupe Européen de Curiethérapie - European Society for Therapeutic Radiology and Oncology) published in 2009 the consensus recommendations for low-dose rate, pulsed-dose rate and high-dose rate brachytherapy in head & neck cancers. The use of brachytherapy in combination with external beam radiotherapy and/or surgery was also covered as well as the use of brachytherapy in previously irradiated patients. Given the developments in the field, these recommendations needed to be updated to reflect up-to-date knowledge...
November 23, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27885303/oral-cavity-and-oropharyngeal-cancer-changing-trends-in-incidence-in-the-united-states-and-oklahoma
#12
Lindsay Denson, Amanda E Janitz, Lacy S Brame, Janis E Campbell
Oral cavity cancer (OC) has steadily decreased in the United States (US) since 1973 whereas oropharyngeal cancer (OP) has increased. We analyzed OC and OP cases from the Oklahoma Central Cancer Registry and Surveillance, Epidemiology, and End Results program comparing those diagnosed from 1997-1999 to those diagnosed from 2010-2012. We compared the incidence of OC and OP cases between Oklahoma and the US and by demographic factors. We observed an increase in OP cases, but no change in OC cases in both the US and in Oklahoma, and observed some differences between Oklahoma and the US by race, gender, and age group...
July 2016: Journal of the Oklahoma State Medical Association
https://www.readbyqxmd.com/read/27878928/sentinel-lymph-node-biopsy-for-early-oral-cancers-westmead-hospital-experience
#13
Muzib Abdul-Razak, Hsiang Chung, Eva Wong, Carsten Palme, Michael Veness, David Farlow, Hedley Coleman, Gary Morgan
BACKGROUND: Sentinel lymph node biopsy (SLNB) has become an alternative option to elective neck dissection (END) for early oral cavity squamous cell carcinoma (OCSCC) outside of Australia. We sought to assess the technical feasibility of SLNB and validate its accuracy against that of END in an Australian setting. METHODS: We performed a prospective cohort study consisting of 30 consecutive patients with cT1-2 N0 OCSCC referred to the Head and Neck Cancer Service, Westmead Hospital, Sydney, between 2011 and 2014...
November 23, 2016: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/27876545/submental-island-flap-reconstruction-in-oral-cavity-cancer-patients-with-level-i-lymph-node-metastasis
#14
P Sittitrai, C Srivanitchapoom, D Reunmakkaew, K Yata
The submental island flap is useful as an alternative to microvascular free tissue transfer for the reconstruction of defects after resection of oral cancer because it is simple to harvest, reliable, and is associated with good oral function and low morbidity. However, because cancer of the oral cavity carries a risk of level I nodal metastases, the oncological safety of the flap remains controversial. Between April 2012 and September 2016, we studied patients with squamous cell carcinoma of the oral cavity who underwent surgical resection with submental island flap reconstruction for viability of the flap, signs of recurrence, and complications...
November 19, 2016: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/27876067/correlation-between-clinical-and-mri-assessment-of-depth-of-invasion-in-oral-tongue-squamous-cell-carcinoma
#15
H A Alsaffar, D P Goldstein, E V King, J R de Almeida, D H Brown, R W Gilbert, P J Gullane, O Espin-Garcia, W Xu, J C Irish
BACKGROUND: Neck metastasis is the most important prognostic factor in oral cavity squamous cell carcinomas (SCC). Apart from the T- stage, depth of invasion has been used as a highly predictable factor for microscopic neck metastasis, despite the controversy on the exact depth cut off point. Depth of invasion can be determined clinically and radio logically. However, there is no standard tool to determine depth of invasion preoperatively. Although MRI is used widely to stage the head and neck disease, its utility in depth evaluation has not formally been assessed...
November 22, 2016: Journal of Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/27872534/use-of-combined-pmmc-and-nasolabial-flap-for-reconstruction-of-full-thickness-cheek-defect-involving-lip-commisure
#16
Mahendra I Katre, Sunil Deshmukh, Pramod Dhanajkar
Head neck cancer constitute significant cancer burden and among it carcinoma of oral cavity involving buccal mucosa is most common entity in India. Very often it involves lip commisure. Radical surgery along with radiotherapy still remains treatment of choice. Reconstruction of composite defect of oral cavity fallowing ablative surgery remains difficult task. Reconstruction of lip commisure defect after primary tumor excision is still a big challenge. Micro vascular technique primary repair is main modality of treatment which needs great surgical expertise in plastic surgery which is not possible in every institution...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27872529/oncological-safety-of-submental-artery-island-flap-in-oral-reconstruction-analysis-of-229-cases
#17
Shaji Thomas, Bipin T Varghese, S Alagu Ganesh, Kapil Prabhu Desai, Elizabeth Mathew Iype, P G Balagopal, Paul Sebastian
Submental artery island flap (SMIF) is gaining popularity as a viable alternative to free flaps in carefully selected oral cavity defects after surgical extirpation of cancers.The current paper looks into the overall efficacy and oncological safety of the flap based on a prospective audit of 229 cases done at a high volume cancer center from october 2004 to september 2012 and concludes that SMIF is a oncologically safe,reliable reconstructive option in carefully selected oral cancers undergoing surgical resections...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27872524/human-papilloma-virus-in-oral-cavity-cancer-and-relation-to-change-in-quality-of-life-following-treatment-a-pilot-study-from-northern-india
#18
Abhishek Kumar Singh, Jitendra Kumar Kushwaha, Akshay Anand, Abhinav Arun Sonkar, Nuzhat Husain, Kirti Srivastava, Sudhir Singh
Human papilloma virus (HPV)-associated head and neck cancer (HNC) has generated significant amount of research interest in recent times with focus shifted to oral cavity squamous cell cancer (OCSCC) after oropharyngeal cancer. Due to high incidence of OCSCC and anecdotal reports on association of HPV infection from northern region of India, this study was conceived to investigate HPV infection and establish its association with lifestyle habits such as tobacco, alcohol consumption, oro-genital sex, number of sexual contacts, and change in quality of life posttreatment...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27872522/sentinel-lymph-node-biopsy-in-n0-neck-for-squamous-cell-carcinoma-of-oral-cavity-a-prospective-study
#19
K Shivakumar, Goel Vipin, Manjunath Suraj, B V Rajaram, Ramesh Rakesh, A Anuradha, K Hemanth
Oral cancers in India are very common. SLNB (sentinel lymph node biopsy) for the management of the cN0 neck provides proper staging with less morbidity. The study aims at assessment of the technical feasibility and accuracy of SLNB. Two by two table and Kappa statistic was used to compare SLN and END. In 14 cases out of 16 cases, SLN was identified. Sensitivity and specificity of 100 % were found. One hundred percent agreement was observed between SLN and END using kappa statistics. A meta-analysis of 19 studies showed 97...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27866975/expression-of-stem-cell-markers-in-oral-cavity-and-oropharynx-squamous-cell-carcinoma
#20
Flávia Paiva Prudente de Moraes, Silvia Vanessa Lourenço, Renata Carolina Fraga Ianez, Elen Alves de Sousa, Marlon Messias da Conceição Silva, Aline Santos Damascena, Luiz Paulo Kowalski, Fernando Augusto Soares, Cláudia Malheiros Coutinho-Camillo
OBJECTIVES: The aim of this study was to analyze the expression of CD24, CD44, CD133, ALDH1, CD29 (integrin-β1), and Ki-67 in squamous cell carcinoma of the oral cavity and oropharynx. STUDY DESIGN: Fifty-two tumors and 21 metastatic lymph nodes were evaluated by using immunohistochemistry. RESULTS: Seven of 52 cases (13.5%) showed positive cytoplasmic staining of aldehyde dehydrogenase 1; integrin-β1 was expressed in 45 of 50 cases (90%); 30 of 52 cases (57...
September 28, 2016: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
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