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Oral cavity tumors

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https://www.readbyqxmd.com/read/29209690/prosthetic-rehabilitation-involving-the-use-of-implants-following-a-fibula-free-flap-reconstruction-in-the-treatment-of-osteosarcoma-of-the-maxilla-a-case-report
#1
E Brauner, A Quarato, F De Angelis, G Pompa, S Jamshir, V Valentini, S Di Carlo
INTRODUCTION: Osteosarcoma is an aggressive primary bone tumor composed of connective tissue cells directly producing osteoid and bone. Prosthetic rehabilitations in post-oncological patients after bone reconstruction are not substantially different than those of patients affected by severe atrophy of upper or lower jaw after bone reconstruction. The treatment for patients with a malignant neoplasia of the oral cavity requires multidisciplinary approach by a team of different specialists that follow the patient through the phases of diagnosis, therapy and oral rehabilitation...
November 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/29204919/prognostic-value-of-the-lymph-node-ratio-in-oropharyngeal-carcinoma-stratified-for-hpv-status
#2
Christian Jacobi, Josepha Rauch, Jan Hagemann, Thomas Lautz, Maximilian Reiter, Philipp Baumeister
OBJECTIVE: Lymph node ratio (LNR) was shown to be a prognostic factor in laryngeal and oral cavity primaries. The purpose of this study was to investigate the impact of the lymph node ratio in oropharyngeal squamous cell carcinoma (OPSCC) with a high incidence of HPV-related disease. Therefore, the role of LNR was evaluated as an additional predictive parameter to the 8th edition of AJCC TNM staging system. METHODS: From December 2009 to August 2015, patients diagnosed with primary oropharyngeal squamous cell carcinoma were prospectively enrolled...
December 4, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29201976/palisaded-encapsulated-solitary-circumscribed-neuroma-of-the-buccal-mucosa-a-rare-case
#3
Saede Atarbashi-Moghadam, Ali Lotfi, Saman Salehi Zalani, Sepideh Mokhtari
The rarity of oral soft tissue spindle cell tumors combined with overlapping microscopic patterns can make challenges in their diagnosis and treatment. Oral cavity palisaded encapsulated neuroma is an uncommon lesion which occurs often on the hard palate. It is essential for oral pathologists to be familiar with its histopathology of this lesion is essential since many lesions are probably diagnosed microscopically as neurofibroma or schwannoma. Here, we report a case of oral palisaded encapsulated (solitary circumscribed) neuroma in an unusual site...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29201965/salivary-chemical-factors-in-relation-with-oral-cancer-in-smokers-and-non-smokers-a-literature-review
#4
REVIEW
Tahereh Nosratzehi
Squamous cell carcinoma of oral cavity is of malignant tumors, which causes cancerous complications. DNA damage, mainly because of products of oxidative stress like reactive oxygen species, is a frequent mutagenic that triggers carcinoma. Smoking increases the probability of cancer incidence. Saliva is the first biological medium to interact with external compounds, especially smoking substances. The present study overviews the salivary level of some remarkable compounds in relation with smoking and squamous cell carcinoma...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29199656/retrospective-analysis-of-palliative-metronomic-chemotherapy-in-head-and-neck-cancer
#5
V M Patil, V Noronha, A Joshi, L Nayak, N Pande, A Chandrashekharan, S Dhumal, A Bhattacharjee, S Banavali, K Prabhash
BACKGROUND: Metronomic chemotherapy has shown promising results in selected patients of head and neck cancer in a small randomized study. This retrospective analysis was done to see whether the efficacy of metronomic chemotherapy in an unselected cohort of head and neck cancer patients is similar to that reported in the randomized study and the influence of the site and subsite of head and neck cancer on survival. MATERIALS AND METHODS: This was a retrospective analysis of head and neck cancer patients who received palliative metronomic chemotherapy between January 2013 and February 2015...
January 2017: Indian Journal of Cancer
https://www.readbyqxmd.com/read/29183823/lip-reconstruction-tecnique-a-modified-abbe-estlander-with-a-myomucosal-advancement-flap
#6
Philip J Brabyn, Mario Fernando Muñoz-Guerra, Ian Zylberberg, Francisco José Rodríguez-Campo
Lip cancer represents between 12-15% of all oral cavity cancers; 95% affect the lower lip. The main objectives in lip reconstruction after tumoral mass resection are functionality and esthetics. We present the case of an 81-year-old male with a past medical history of squamous cell carcinoma of the maxilla. The patient consults with the Maxillofacial Surgery Department due to a hypertrophic lesion in the left oral commissure. The defect is considered intermediate in size (between 50% and 2/3). For reconstruction of the lip, a classical rotation flap (Estlander flap) is used together with a myomucosal flap, which is both innervated and expandable...
November 25, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29181079/survivin-expression-hpv-positivity-and-microvessel-density-in-oropharyngeal-carcinomas-and-relationship-with-survival-time
#7
Ebru Tastekin, Vuslat Yurut Caloglu, Nilufer Kilic Durankus, Necdet Sut, Gorkem Turkkan, Nuray Can, Fulya Oz Puyan, Murat Caloglu
Introduction: Among head and neck cancers, those of the oral cavity and oropharynx are the second most prevalent following the larynx. This study aimed to research immunohistochemical expression of survivin, HPV positivity and microvessel density in tumors and their relationships with prognosis. Material and methods: Pathological materials and demographic properties of 46 patients were retrospectively evaluated. Survivin, HPV and CD34 (for microvessel density evaluation) antibodies were applied tumoral tissues...
October 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29176703/nsd1-and-nsd2-damaging-mutations-define-a-subset-of-laryngeal-tumors-with-favorable-prognosis
#8
Suraj Peri, Evgeny Izumchenko, Adrian D Schubert, Michael J Slifker, Karen Ruth, Ilya G Serebriiskii, Theresa Guo, Barbara A Burtness, Ranee Mehra, Eric A Ross, David Sidransky, Erica A Golemis
Squamous cell carcinomas of the head and neck (SCCHN) affect anatomical sites including the oral cavity, nasal cavity, pharynx, and larynx. Laryngeal cancers are characterized by high recurrence and poor overall survival, and currently lack robust molecular prognostic biomarkers for treatment stratification. Using an algorithm for integrative clustering that simultaneously assesses gene expression, somatic mutation, copy number variation, and methylation, we for the first time identify laryngeal cancer subtypes with distinct prognostic outcomes, and differing from the non-prognostic laryngeal subclasses reported by The Cancer Genome Atlas (TCGA)...
November 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/29174174/significant-association-of-rheumatoid-arthritis-related-inflammatory-markers-with%C3%A2-non-surgical-periodontal-therapy
#9
Ning-Ya Yang, Chen-Ying Wang, I-Tsu Chyuan, King-Jean Wu, Yu-Kang Tu, Ching-Wen Chang, Ping-Ning Hsu, Mark Yen-Ping Kuo, Yi-Wen Chen
BACKGROUND/PURPOSE: Chronic periodontitis (CP) and rheumatoid arthritis (RA) are the most common chronic inflammatory diseases and their immunopathogenesis is similar. The aim of this study was to evaluate the effect of non-surgical periodontal treatment on the serum levels of RA-related inflammatory markers in patients with chronic periodontitis. METHODS: Thirty-one Taiwanese adults with CP were included. Demographics and periodontal parameters, including probing depth, clinical attachment level, and number of remaining teeth in the oral cavity, were recorded...
November 22, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/29164473/clinicopathological-and-immunohistochemical-study-of-head-and-neck-langerhans-cell-histiocytosis-from-latin-america
#10
Natália Rocha Bedran, Román Carlos, Bruno Augusto Benevenuto de Andrade, Ana Paula Silva Bueno, Mário José Romañach, Cristiane Bedran Milito
Langerhans cell histiocytosis (LCH) is an inflammatory myeloid neoplastic proliferation with variable clinical behavior caused by the accumulation of CD1a(+)/CD207(+) histiocytes, associated with a variable number of eosinophils, lymphocytes, plasma cells and multinucleated giant cells, most commonly observed in male children. LCH is uncommon in the head and neck region, occurring as ulcerated and reddened plaques or nodules that cause destruction of adjacent soft tissues and bone. The exact etiology of LCH is still unknown and controversial, with possible etiologic role of viruses, including Epstein-Barr virus (EBV)...
November 21, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/29161180/comparison-of-verdeluz-orange-g-and-modified-gallego-stains
#11
A Kunche, M A Kiresur, A Ananthaneni, V S Guduru, H K Puneeth, B Bagalad
Tumors of the oral cavity include combinations of hard and soft tissues that may be difficult to identify using routine hematoxylin and eosin (H & E) staining. Although combination stains can demonstrate hard and soft tissues, trichrome stains, such as VanGieson and Masson, cannot differentiate dental hard tissues, such as dentin, cementum and osteoid. Modified Gallegos (MGS) and verdeluz orange G-acid fuchsin (VOF) stains can differentiate components of teeth. We used 10 tissue sections of decalcified bone and 10 pathologic tissue sections that contained different calcified tissues including peripheral ossifying fibroma, odontoma, central ossifying fibroma and cemento-ossifying fibroma...
November 21, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/29160393/pro-inflammatory-analysis-of-macrophages-in-contact-with-titanium-particles-and-porphyromonas-gingivalis
#12
Cindy Goes Dodo, Luiz Meirelles, Alejandro Aviles-Reyes, Karina Gonzalez Silvério Ruiz, Jacqueline Abranches, Altair Antoninha Del Bel Cury
During insertion of titanium dental implants, particles may shear from the implant to the periimplant region causing osteolysis, and their association with bacteria can exacerbate the inflammatory reaction. However, the association of a high invasive bacterium from the oral cavity, Porphyromonas gingivalis (Pg), and titanium particles remains unknown. This study evaluated pro-inflammatory reaction of human macrophages in contact with micro and nanoparticles of titanium associated with Porphyromonas gingivalis lipopolysaccharide (PgLPS)...
July 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/29158340/effects-of-black-raspberry-on-dibenzo-a-l-pyrene-diol-epoxide-induced-dna-adducts-mutagenesis-and-tumorigenesis-in-the-mouse-oral-cavity
#13
Kun-Ming Chen, Joseph B Guttenplan, Yuan-Wan Sun, Timothy Cooper, Nora Ae Shalaby, Wieslawa Kosinska, Gabrielle Benitez, Cesar Aliaga, Junjia Zhu, Jason Liao, Krishne Gowda, Shantu Amin, Gary Stoner, Karam El-Bayoumy
We previously showed that metabolic activation of the environmental and tobacco smoke constituent dibenzo[a,l]pyrene (DB[a,l]P) to its active fjord region diol epoxide (DB[a,l]PDE) is required to induce DNA damage, mutagenesis and squamous cell carcinoma (SCC) in the mouse oral cavity. In contrast to procarcinogens which were employed previously to induce SCC, DB[a,l]PDE does not require metabolic activation to exert its biological effects and thus, this study was initiated to examine, for the first time, whether black raspberry powder (BRB) inhibits post-metabolic processes such as DNA damage, mutagenesis and tumorigenesis...
November 20, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/29156633/alcohol-and-cancer-stem-cells
#14
REVIEW
Mei Xu, Jia Luo
Heavy alcohol consumption has been associated with increased risk of several cancers, including cancer of the colon, rectum, female breast, oral cavity, pharynx, larynx, liver, and esophagus. It appears that alcohol exposure not only promotes carcinogenesis but also enhances the progression and aggressiveness of existing cancers. The molecular mechanisms underlying alcohol tumor promotion, however, remain unclear. Cancer stem cells (CSC), a subpopulation of cancer cells with self-renewal and differentiation capacity, play an important role in tumor initiation, progression, metastasis, recurrence, and therapy resistance...
November 20, 2017: Cancers
https://www.readbyqxmd.com/read/29154820/cytotoxic-t-cell-responses-to-streptococcus-are-associated-with-improved-prognosis-of-oral-squamous-cell-carcinoma
#15
Jie Wang, Feng Sun, Xiaoyu Lin, Zaiye Li, Xiaohe Mao, Canhua Jiang
Several species of Streptococcus, such as S. salivarius, S. mitis, and S. anginosus, are found to extensively colonize the oral cavity and the upper respiratory tract, and have been shown to increase in patients with oral squamous cell carcinoma (OSCC). Accumulating evidence have revealed that commensal bacteria are involved in antitumor immunity via T cell-mediated mechanisms, but the role of Streptococcus enrichment in OSCC is yet unclear. In this study, we stimulated peripheral blood mononuclear cells from non-cancer controls (NCs) and OSCC patients with S...
November 14, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/29153038/a-divergent-pseudoglandular-configuration-of-cutaneous-plasmacytoma-in-dogs
#16
Brittany McHale, Uriel Blas-Machado, Fabiano N Oliveira, Daniel R Rissi
Cutaneous and mucocutaneous plasmacytoma (PCT) is a common neoplasm of dogs. Tumors can be single or multiple and occur predominantly in the oral cavity, lip, ears, digits, and trunk. Although these tumors typically offer no diagnostic challenge for the pathologist, subsets of PCTs with atypical morphologic configurations may make differentiation from other neoplasms difficult. We describe 6 cases of canine cutaneous and mucocutaneous PCT with pseudoglandular arrangement of neoplastic cells. The mean age of affected dogs was 11...
November 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29151903/fusobacterium-nucleatum-in-gastroenterological-cancer-evaluation-of-measurement-methods-using-quantitative-polymerase-chain-reaction-and-a-literature-review
#17
Kensuke Yamamura, Yoshifumi Baba, Keisuke Miyake, Kenichi Nakamura, Hironobu Shigaki, Kosuke Mima, Junji Kurashige, Takatsugu Ishimoto, Masaaki Iwatsuki, Yasuo Sakamoto, Yoichi Yamashita, Naoya Yoshida, Masayuki Watanabe, Hideo Baba
The human microbiome Fusobacterium nucleatum, which primarily inhabits the oral cavity, causes periodontal disease and has also been implicated in the development of colorectal cancer. However, whether F. nucleatum is present in other gastroenterological cancer tissues remains to be elucidated. The present study evaluated whether quantitative polymerase chain reaction (qPCR) assays were able to detect F. nucleatum DNA and measure the quantity of F. nucleatum DNA in esophageal, gastric, pancreatic and liver cancer tissues...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29147443/4-nitroquinoline-1-oxide-induced-tongue-and-esophagus-carcinogenesis-in-obese-and-diabetic-tsod-mice
#18
Takuji Tanaka, Kunihiro Kawabata, Shigeyuki Sugie
Background: Obesity and diabetes mellitus are associated with lifestyle-related carcinogenesis. They are also risk factors of esophageal adenocarcinoma, but there are only a few reports on association between obesity/diabetes and development of squamous cell carcinoma in the oral cavity and esophagus. In this study, we therefore aimed to determine whether obesity and diabetes affect oral and esophageal carcinogenesis using model mice of obesity and diabetes, the Tsumura Suzuki obese diabetes (TSOD) and Tsumura Suzuki non-obesity (TSNO) control mice, which were treated with 4-nitroquinoline 1-oxide (4-NQO) to produce tongue and esophageal carcinomas...
August 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29142465/efficacy-of-vinorelbine-combined-with-low-dose-methotrexate-for-treatment-of-inoperable-desmoid-tumor-and-prognostic-factor-analysis
#19
Shu Li, Zhengfu Fan, Zhiwei Fang, Jiayong Liu, Chujie Bai, Ruifeng Xue, Lu Zhang, Tian Gao
Objective: To assess the efficacy of conservative chemotherapy for inoperable desmoid tumor (DT) and analyze the prognostic factors. Methods: From November 2008 to April 2016, 71 patients of inoperable DT were treated with vinorelbine and low-dose methotrexate in the Department of Bone and Soft Tissue Tumors, Peking University Cancer Hospital & Institute, and enrolled in this retrospective study. The chemotherapy duration is one year. The efficacy of chemotherapy and the prognosis were observed...
October 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/29135311/atm-bcl2-and-tgf%C3%AE-gene-polymorphisms-as-radiotherapy-outcome-biomarkers-in-head-and-neck-squamous-cell-carcinoma-patients
#20
Lidiane P Agostini, Elaine Stur, Fernanda M Garcia, Diego P Ventorim, Raquel S Dos Reis, Raquel S Dettogni, Eldamária V W Dos Santos, Gabriela T Peterle, Lucas L Maia, Suzanny O Mendes, Marcos B de Carvalho, Eloiza H Tajara, Flavia de Paula, Marcelo Dos Santos, Adriana M A da Silva, Iúri Drumond Louro
AIMS: Polymorphisms in cell cycle genes are considered prognostic and radiosensitivity markers in patients with head and neck squamous cell carcinoma. Therefore, we have aimed to investigate the relationship of ATM 5557G>A, ATM IVS62 + 60G>A, TP53 215G>C, BCL2-938C>A, TGFβ-509C>T, and TGFβ 29C>T with radiotherapy response. MATERIALS AND METHODS: Genotyping was performed by polymerase chain reaction followed by restriction fragment length polymorphism in 210 patients with oral cavity/oropharynx carcinoma and 101 patients with larynx tumors...
November 14, 2017: Genetic Testing and Molecular Biomarkers
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