نتایج جستجو برای: leukoplakia

تعداد نتایج: 1519  

2013
Mohammed H. Abdulrahim Brenda A. McManus Stephen R. Flint David C. Coleman

Oral leukoplakias are histopathologically-diagnosed as Candida leukoplakia or non-Candida leukoplakia by the presence or absence of hyphae in the superficial epithelium. Candida leukoplakia lesions have significantly increased malignant potential. Candida albicans is the most prevalent fungal species associated with oral leukoplakia and may contribute to malignant transformation of Candida leuk...

Journal: :Cancer prevention research 2015
Elizabeth L Yanik Hormuzd A Katki Michael J Silverberg M Michele Manos Eric A Engels Anil K Chaturvedi

Screening for oral leukoplakia, an oral cavity cancer (OCC) precursor, could lead to earlier detection of OCC. However, the progression rate from leukoplakia to OCC and the benefits of leukoplakia screening for improving OCC outcomes are currently unclear. We conducted a case-cohort study of U.S. adults ages ≥65 years in the Surveillance, Epidemiology, and End Results (SEER)-Medicare linkage. W...

Journal: :Asian Pacific journal of cancer prevention : APJCP 2015
Surendra Kumar Malaisamy Muniyandi

BACKGROUND Leukoplakia is an asymptomatic and potentially malignant change in the oral mucosa and high frequencies have been reported among smokers. The present study concerned the prevalence of tobacco use and leukoplakia and also associations between the two. STUDY DESIGN This cross sectional survey was conducted amongst the Gond tribal population of Kundam Block, Jabalpur district, Madhya ...

Journal: :Head & neck 2012
Hung-Pin Lin Hsin-Ming Chen Shih-Jung Cheng Chuan-Hang Yu Chun-Pin Chiang

BACKGROUND Our previous study showed that cotton-swab cryotherapy is an alternative treatment modality for oral leukoplakia. METHODS This study used liquid nitrogen spray with a cryogun (cryogun cryotherapy) to treat 60 oral leukoplakia lesions. RESULTS Complete regression was achieved in all 60 oral leukoplakia lesions after cryogun cryotherapy. We found that 60 oral leukoplakia lesions tr...

Journal: :Anticancer research 2008
Eliza Carla Barroso Duarte Daniela Cotta Ribeiro Marcus Vinícius Gomez Maria Letícia Ramos-Jorge Ricardo Santiago Gomez

BACKGROUND Genetic polymorphisms of carcinogen-metabolizing enzyme genes have been associated with the risk of oral squamous cell carcinoma and oral leukoplakia. The overexpression of p53 protein is the most common genetic alteration in head and neck cancer. In the present study the combined or isolated presence of glutathione S-transferases GSTM1, GSTT1, GSTP1, and the cytochrome P450 oxidases...

2012
L. Feller J. Lemmer

Leukoplakia is the most common potentially malignant lesion of the oral cavity and can be categorised according to its clinical appearance as homogeneous or nonhomogenous. Tobacco and areca nut use, either alone or in combination are the most common risk factors for oral leukoplakia, but some oral leukoplakias are idiopathic. Some leukoplakias arise within fields of precancerized oral epitheliu...

2018
Hidetaka Nomura Kimihiko Sakamoto Takeru Sugihara Shuhei Okamoto Yoichi Aoki Terumi Tanigawa Maki Matoda Kohei Omatsu Hiroyuki Kanao Kazuyoshi Kato Kuniko Utsugi Yuko Sugiyama Nobuhiro Takeshima

Pegylated liposomal doxorubicin (PLD) has a good safety profile, but long-term use has been associated with development of squamous cell carcinoma of the tongue and oral cavity (SCCTO) in some patients. The study objective was to estimate the prevalence of oral leukoplakia, a known precursor of SCCTO, in patients with ovarian cancer and long-term PLD use.After approval of the institutional revi...

Journal: :international journal of preventive medicine 0
seema kapoor jay gopal ray pranav sikka niharika swain

background: human papillomavirus (hpv) and p53 alterations are speculated to play a role in carcinogenesis. this study was carried out to find out the association of hpv and p53 with precancerous lesions of the oral cavity such as leukoplakia: the objective of this study was to find the association among human papilloma virus (hpv) 16 infections and p53 polymorphism in tobacco using the oral le...

Journal: :Journal of clinical and diagnostic research : JCDR 2014
Sunil Mutalik Vimi S Mutalik Keerthilatha M Pai Venkatesh G Naikmasur Khoo Suan Phaik

BACKGROUND Oral leukoplakia is a potentially malignant disorder of the oral cavity. Leukoplakias with chances of undergoing malignant transformation owing to the presence of dysplastic changes may not be clinically distinguishable from leukoplakias without dysplasia. The study was carried out to evaluate the usefulness of biopsy in assessing the clinico-pathologic correlations of oral leukoplak...

F Baghaei M Raoof SH Adhami SH Kakooi

Background & Aims: Leukoplakia is the most common premalignant or potentially malignant lesion of the oral mucosa and its potentiality for malignant transformation is unpredictable. The aim of the present study was to evaluate p53 expression in normal oral epithelium, leukoplakia and oral squamous cell carcinoma. Methods: The standard Biotin streptavaidin peroxidase immunohistochemical staining...

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