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Oral cavity carcinoma

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https://www.readbyqxmd.com/read/28320044/multiple-concomitant-oral-cavity-cancers-incidence-management-and-outcomes
#1
Huang-Kai Kao, Mohamed Abdelrahman, Yenlin Huang, Chia-Hsuan Tsai, Megias J Barrera, Ngan-Ming Tsang, Adam J Couves, Ming-Huei Cheng, Kai-Ping Chang
BACKGROUND: Little is known about the appropriate treatment and long-term survival of patients with multiple concomitant oral cavity cancers (MOC). The aim of this study was to clarify the clinicopathological features of MOC, to compare the prognosis of MOC patients with that of patients with single oral cavity cancers (SOC), and to describe reconstructive options based on the concept of economy in autologous tissue transfer. METHODS: Data from 603 patients diagnosed with at least one squamous cell carcinoma of the oral cavity who underwent surgery for primary oral cavity cancers between 2006 and 2014 were reviewed retrospectively to identify MOC patients...
March 20, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28316084/sensitivity-and-specificity-of-antibodies-against-hpv16-e6-and-other-early-proteins-for-the-detection-of-hpv16-driven-oropharyngeal-squamous-cell-carcinoma
#2
Dana Holzinger, Gunnar Wichmann, Lorena Baboci, Angelika Michel, Daniela Höfler, Manuel Wiesenfarth, Lea Schroeder, Paolo Boscolo-Rizzo, Christel Herold-Mende, Gerhard Dyckhoff, Andreas Boehm, Annarosa Del Mistro, Franz X Bosch, Andreas Dietz, Michael Pawlita, Tim Waterboer
To determine the sensitivity and specificity of HPV16 serology as diagnostic marker for HPV16-driven oropharyngeal squamous cell carcinoma (OPSCC), 214 HNSCC patients from Germany and Italy with fresh-frozen tumor tissues and sera collected before treatment were included in this study. 120 cancer cases were from the oropharynx and 94 were from head and neck cancer regions outside the oropharynx (45 oral cavity, 12 hypopharynx and 35 larynx). Serum antibodies to early (E1, E2, E6 and E7) and late (L1) HPV16 proteins were analyzed by multiplex serology and were compared to tumor HPV RNA status as the gold standard...
March 18, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28314692/identification-of-an-atypical-etiological-head-and-neck-squamous-carcinoma-subtype-featuring-the-cpg-island-methylator-phenotype
#3
K Brennan, J L Koenig, A J Gentles, J B Sunwoo, O Gevaert
Head and neck squamous cell carcinoma (HNSCC) is broadly classified into HNSCC associated with human papilloma virus (HPV) infection, and HPV negative HNSCC, which is typically smoking-related. A subset of HPV negative HNSCCs occur in patients without smoking history, however, and these etiologically 'atypical' HNSCCs disproportionately occur in the oral cavity, and in female patients, suggesting a distinct etiology. To investigate the determinants of clinical and molecular heterogeneity, we performed unsupervised clustering to classify 528 HNSCC patients from The Cancer Genome Atlas (TCGA) into putative intrinsic subtypes based on their profiles of epigenetically (DNA methylation) deregulated genes...
March 1, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28280659/reconstruction-of-through-and-through-oromandibular-defect-comparison-of-four-different-techniques
#4
John Chung-Han Wu, Yi-Chieh Lee, Yu-Chun Cheng, Chih-Wei Wu
BACKGROUND: Through-and-through oromandibular defects originate from surgical intervention of tumors of the oral cavity involving external skin, soft tissue, bone, and oral lining. Reconstruction of such composite defects is primarily achieved by 4 methods using distinct flaps in Chang Gung Memorial Hospital, including a single anterolateral thigh (ALT) flap, a single fibula flap, an osteomyocutaneous peroneal artery-based combined flap, and a combination of a fibular flap and an ALT flap, also known as a double flap...
February 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28276113/tumor-volume-as-an-independent-predictive-factor-of-worse-survival-in-patients-with-oral-cavity-squamous-cell-carcinoma
#5
Chin Shien Lin, André Bandiera de Oliveira Santos, Evandro Lima E Silva, Leandro Luongo de Matos, Raquel Ajub Moyses, Marco Aurélio Vamondes Kulcsar, Fábio Roberto Pinto, Lenine Garcia Brandão, Claudio Roberto Cernea
BACKGROUND: The purpose of the present study was to investigate the role of tumor volume in the prognosis of patients with oral cavity squamous cell carcinoma (SCC). METHODS: One hundred twenty-three patients with T4a oral cavity SCCs underwent surgical treatment. The volumes of the primary cancer were calculated by the multiplication of 3 macroscopic dimensions of the surgical specimen and related to recurrence and death. RESULTS: There were 54 recurrences (43...
March 9, 2017: Head & Neck
https://www.readbyqxmd.com/read/28274400/adjuvant-radiation-in-the-tors-era-is-there-a-benefit-to-omitting-the-tumor-bed
#6
Stanislav Lazarev, Blagoja Todorov, James Tam, Vishal Gupta, Brett A Miles, Nancy Lee, Richard L Bakst
PURPOSE: Trans-oral robotic surgery (TORS) followed by adjuvant radiation therapy (RT) is becoming popular in treating node-positive tonsillar squamous cell carcinoma (SCC). One potential benefit is eliminating irradiation of the primary site when the tumor is widely resected, and targeting the neck only. This study assessed whether omitting the tumor bed provides any dosimetric or clinical advantage. METHODS AND MATERIALS: We identified 21 patients with primary tonsillar SCC that were treated with TORS followed by RT to the ipsilateral neck and primary (N+P) site...
March 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/28274074/oral-carcinoma-cuniculatum-a-new-entity-in-the-clinicopathological-spectrum-of-oral-squamous-cell-carcinoma
#7
Uma Vasant Datar, Alka Kale, Deepa Mane
Carcinoma cuniculatum is principally recognized as a variant of carcinoma involving foot. The World Health Organization (WHO) recognizes Oral Carcinoma Cuniculatum (OCC) as a distinct and rare clinicopathological variant of Oral Squamous Cell Carcinoma (OSCC). OCC is confused clinically and histologically with Verrucous Carcinoma (VC) and is often misdiagnosed as either VC or OSCC. To best of our knowledge, till date, only 50 cases of this tumour have been reported in oral cavity (including the present case) and only limited number of cases have been reported from Indian subcontinent...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28272660/prominent-signet-ring-cell-morphology-in-a-pulmonary-squamous-cell-carcinoma
#8
Nuri Yiğit, Ertuğrul Çelik, İbrahim Yavan
In daily practice, signet ring cell morphology immediately brings to the mind the possibility of an adenocarcinoma at first glance. The signet ring cell appearance has been described and is well-known in a wide variety of some other neoplasms as well. Surprisingly however, neoplastic cells having the same morphology can unexpectedly be encountered in not previously well-documented tumors. Here, we present an 85-year-old man diagnosed with primary pulmonary squamous cell carcinoma and a large signet ring cell population...
February 4, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28272004/surgical-outcomes-post-neoadjuvant-chemotherapy-in-stage-iv-cancers-of-oral-cavity
#9
(no author information available yet)
AIM: To know the effect of neoadjuvant chemotherapy on surgical outcomes (R1 resections, post-operative complications, recurrence and follow up) in Stage IV borderline operable cancers of oral cavity. MATERIALS AND METHODS: Patients in group A (n=45) were those who were referred for neoadjuvant chemotherapy (NACT) with an intention to operate at a later date. These were compared with 45 patients of group B who were operated upfront. All 90 patients have stage IV squamous cell carcinoma of oral cavity...
January 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28249612/do-selective-radiation-dose-escalation-and-tumour-hypoxia-status-impact-the-loco-regional-tumour-control-after-radio-chemotherapy-of-head-neck-tumours-the-escalox-protocol
#10
Steffi U Pigorsch, Jan J Wilkens, Severin Kampfer, Victoria Kehl, Alexander Hapfelmeier, Christian Schläger, Henning Bier, Markus Schwaiger, Stephanie E Combs
BACKGROUND: Standard of care primary treatment of carcinoma of locally advanced squamous cell head and neck cancer (LAHNSCC) consists of platinum-based concomitant chemo-irradiation. Despite progress in the treatment of LAHNSCC using modern radiotherapy techniques the outcome remains still poor. Using IMRT with SIB the escalation of total dose to the GTV is possible with the aim to improve clinical outcome. This study tests the hypothesis if radiation dose escalation to the GTV improves 2-year-LRC and -OS after concomitant chemo-irradiation...
March 1, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28247230/update-from-the-4th-edition-of-the-world-health-organization-of-head-and-neck-tumours-tumours-of-the-oral-cavity-and-mobile-tongue
#11
Susan Müller
There have been several additions and deletions in Chapter 4 on Tumours of the oral cavity and mobile tongue in the 2017 fourth edition of the World Health Organization Classification of Tumours of the Head and Neck. This chapter excludes the oropharynx, which now is a stand-alone chapter acknowledging the uniqueness of the oropharynx from the oral cavity. New entries in Chapter 4 include rhabdomyoma, haemangioma, schwannoma, neurofibroma and myofibroblastic sarcoma in the section titled Soft tissue and neural tumours...
March 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28247229/update-from-the-4th-edition-of-the-world-health-organization-classification-of-head-and-neck-tumours-oropharynx
#12
William H Westra, James S Lewis
The changes for oropharyngeal lesions in the 2017 edition of the WHO/IARC Classification of Head and Neck Tumours reference book are dramatic and significant, largely due to the growing impact of high risk human papillomavirus (HPV). The upcoming edition divides tumours of the oral cavity and oropharynx into separate chapters, classifies squamous cell carcinomas (SCC) of the oropharynx on the basis of HPV status, abandons the practice of histologic grading for oropharyngeal SCCs that are HPV positive, recognizes small cell carcinoma of the oropharynx, and combines polymorphous low grade adenocarcinoma and cribriform adenocarcinoma of tongue and minor salivary glands under the single term "polymorphous adenocarcinoma...
March 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28244469/squamous-cell-carcinoma-of-the-oral-cavity-and-oropharynx-in-young-adults
#13
D Sharma, G Singh
BACKGROUND: Head and neck squamous cell carcinoma (SCC) is a disease of older age group predominately in the sixth and eighth decades of life. The incidence of oral SCC (young age <40 years) varies between 0.4% and 3.9%. There has been increasing trend in younger age group worldwide as well as in India as reported by many studies. AIM: The aim of the present study was to compare the clinicopathological profile, treatment, and outcomes of SCC of oral cavity and oropharyngeal cancer in the young age group of <40 years old...
July 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28243114/clinicopathological-significance-of-zeb-1-and-e-cadherin-proteins-in-patients-with-oral-cavity-squamous-cell-carcinoma
#14
Xiaofeng Yao, Shanshan Sun, Xuan Zhou, Qiang Zhang, Wenyu Guo, Lun Zhang
BACKGROUND: Zinc-finger E-box binding homeobox 1 (ZEB-1), a member of the ZFH family, plays a key role in epithelial-mesenchymal transition during tumor progression in various cancers. However, little information is available on ZEB-1 expression in oral cavity squamous cell carcinoma (OSCC). METHODS: The expression levels of ZEB-1 and E-cadherin were assessed by immunohistochemistry in a cohort of 120 patients with OSCC treated by curative operation, and then the correlations between ZEB-1 and E-cadherin expression and clinical factors were evaluated, including patient prognosis...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28239573/role-of-buccal-pad-of-fat-in-reconstruction-of-the-buccal-mucosa-defects
#15
A Sagayaraj, N Divya Jyothi, S M Azeem Mohiyuddin, Ravindra P Deo, B Vageesh Padiyar
Carcinoma buccal mucosa is the most common oral cavity cancer in India. Following excision of these lesions the defects can be reconstructed using various reconstructive techniques. Buccal pad of fat has been successfully used in the reconstruction of small palatal defects and in the closure of the oro antral fistula. This study aims at evaluating the role of buccal pad of fat in reconstruction of defects following excision of the small to medium premalignant lesions and T1-T2 malignant lesions of buccal mucosa...
March 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/28236368/treatment-related-determinants-of-survival-in-early-stage-t1-2n0m0-oral-cavity-cancer-a-population-based-study
#16
Justin C Sowder, Richard B Cannon, Luke O Buchmann, Jason P Hunt, Ying Hitchcock, Shane Lloyd, Kenneth F Grossmann, Marcus M Monroe
BACKGROUND: National guidelines support both surgical and radiotherapy (RT) as initial treatment options for early-stage oral cavity squamous cell carcinoma (SCC). There remains limited data evaluating the survival outcomes of RT and the current practice patterns for these lesions. METHODS: We conducted a retrospective review of 8274 patients in the Surveillance, Epidemiology, and End Results (SEER) database from 1988 to 2008 with T1 to T2N0M0 oral cavity SCC. Primary outcomes were 5-year overall survival (OS) and disease-specific survival (DSS)...
February 25, 2017: Head & Neck
https://www.readbyqxmd.com/read/28236349/treatment-delays-in-oral-cavity-squamous-cell-carcinoma-and-association-with-survival
#17
Rance J T Fujiwara, Benjamin L Judson, Wendell G Yarbrough, Zain Husain, Saral Mehra
BACKGROUND: Treatment durations and factors associated with delays for oral cavity squamous cell carcinoma (SCC) have previously been described but are not fully understood. Impact of delays on overall survival (OS) remains unclear. METHODS: The National Cancer Data Base (NCDB) was used to analyze 4868 patients with oral cavity SCC from 1998 to 2011. Diagnosis-to-surgery, surgery-to-radiotherapy (RT)start , RT duration, total treatment package (surgery-to-RTend ), and diagnosis-to-RTend were evaluated...
February 25, 2017: Head & Neck
https://www.readbyqxmd.com/read/28230921/prevalence-of-promoter-mutations-in-the-tert-gene-in-oral-cavity-squamous-cell-carcinoma
#18
Kai-Ping Chang, Chun-I Wang, Curtis R Pickering, Yenlin Huang, Chi-Neu Tsai, Ngan-Ming Tsang, Huang-Kai Kao, Ming-Huei Cheng, Jeffrey N Myers
BACKGROUND: Mutations in the human telomerase reverse transcriptase (TERT) promoter contribute to increased TERT activity. The purpose of the present study was to assess the prevalence of TERT promoter mutations in oral cavity squamous cell carcinoma (SCC). METHODS: Total DNA was extracted from 201 oral cavity SCC tumors and adjacent normal tissues. Primers were used to amplify the sequence region containing 2 TERT promoter mutations (C228T and C250T) that were then sequenced using the Sanger method...
February 23, 2017: Head & Neck
https://www.readbyqxmd.com/read/28223824/mir182-activates-the-ras-mek-erk-pathway-in-human-oral-cavity-squamous-cell-carcinoma-by-suppressing-rasa1-and-spred1
#19
Jinhui Wang, Wei Wang, Jichen Li, Liji Wu, Mei Song, Qinggang Meng
PURPOSE: The constitutive activation of the Ras-MEK-ERK signaling pathway in oral cavity squamous cell carcinoma (OSCC) has been found to be tightly controlled at multiple levels under physiological conditions. RASA1 and SPRED1 are two important negative regulators of this pathway, but the exact regulating mechanism remains unclear. In this study, we aimed to explore the potential regulating mechanisms involved in the Ras-MEK-ERK signaling pathway in OSCC. MATERIALS AND METHODS: MicroRNA (miRNA) expression was detected by quantitative reverse-transcription polymerase chain reaction...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28214216/cancer-stem-cell-cytokeratins-and-epithelial-to-mesenchymal-transition-markers-expression-in-oral-squamous-cell-carcinoma-derived-from-ortothopic-xenoimplantation-of-cd44-high-cells
#20
Nathália Paiva de Andrade, Maria Fernanda Setúbal Destro Rodrigues, Camila Oliveira Rodini, Fabio Daumas Nunes
Oral squamous cell carcinoma (OSCC) is the most prevalent neoplasia of oral cavity worldwide and prognosis remains unchanged in decades. Recently, different authors reported that head and neck squamous cell carcinomas have a subpopulation of tumor initiating cells that apparently correspond to cancer stem cells (CSC) and are also responsible for tumor growth and metastasis. The purpose of the present study was to investigate the microscopic and phenotypic characteristics of OSCC tumors induced after orthotopic xenoimplantation of SCC9(WT) cell line and CSC-enriched subpopulation isolated from SCC9 cell line based on high expression of the putative CSC marker CD44...
December 23, 2016: Pathology, Research and Practice
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