نتایج جستجو برای: head and neck squamous cell carcinoma
تعداد نتایج: 17192636 فیلتر نتایج به سال:
background: the aim of this study was to present epidemiological aspects of malignant tumor of head and neck in southeast of iran, with a view toward analyzing the age, gender, site distribution and histological types. methods: all cases with malignant tumor of the head and neck region from 1999 to 2009 were retrieved from the records of cancer registry center of kerman university of medical s...
objectives: presence/absence of cervical lymph node metastasis plays a critical role in prognosis and survival of patients with oral squamous cell carcinoma (scc). this study was designed to assess the diagnostic accuracy of computed tomography (ct) scan for detection of cervical lymph node metastasis in oral scc in comparison with histopathological analysis after neck dissection methods: in th...
introduction: squamous cell carcinoma (scc) is the most common head and neck malignancy. smoking, alcohol consumption, viral infections, exposure, oral hygiene, and dietary, genetic, and occupational factors are the most important etiologic factors. the aim of this study was determining the incidence of etiologic factors in head and neck scc. materials and methods: this is a cross-sectional su...
Background and Aim: Cutaneous squamous cell carcinoma (CSCC) is the second most common skin cancer. Mast cells may play a role in tumor progression and metastasis by increasing angiogenesis. The aim of this study was to investigate the role of mast cells by increasing angiogenesis in invasion of head and neck cutaneous squamous cell carcinoma. Materials and Methods: In this cross-sectional stud...
introduction: her2/neu, a member of the epidermal growth factor receptor family, has been shown to be over-expressed in some tumors. the purpose of this study was to determine the salivary levels and tissue expression of her2/neu in patients with head and neck squamous cell carcinoma (hnscc) and their correlation with clinicopathologic parameters. materials and methods: enzyme-linked immunoso...
objective(s) matrix metalloproteinases comprise a family of enzyme that is able to degrade components of extra cellular matrix. there are single nucleotide polymorphisms in the promoter regions of several genes with ability to influence cancer susceptibility. the aim of this study was to analyses association between mmp2 and mmp9 promoter polymorphisms and head and neck squamous cell carcinoma ...
Introduction: Squamous cell carcinoma (SCC) is the most common head and neck malignancy. Smoking, alcohol consumption, viral infections, exposure, oral hygiene, and dietary, genetic, and occupational factors are the most important etiologic factors. The aim of this study was determining the incidence of etiologic factors in head and neck SCC. Materials and Methods: This is a cross-sectiona...
Introduction: Head and neck squamous cell carcinoma is one of the most important causes of morbidity and mortality. It has several histologic subtypes, among which papillary squamous cell carcinoma (pscc) is a rare one, specifically in upper aerodigestive tract. It was first introduced in 1990, which proved to have poor prognosis. In this study, a 72-year old female was introduced with ethmoida...
Objective(s) Matrix metalloproteinases comprise a family of enzyme that is able to degrade components of extra cellular matrix. There are single nucleotide polymorphisms in the promoter regions of several genes with ability to influence cancer susceptibility. The aim of this study was to analyses association between MMP2 and MMP9 promoter polymorphisms and head and neck squamous cell carcinoma...
Background: Head and neck squamous cell carcinoma (HNSCC) is the malignancy of squamous cells (the epidermal layer of skin) in cavities in head and neck includes: larynx, pharynx, paranasal sinuses and oral cavity. The main goal of this research was to understand the effect of mutations in two important genes (KRAS and BRAF) in RAS/MAP kinase (EGFR) signaling pathway in tumor cells with head an...
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