Pleomorphic Adenoma
Mostrando 13-24 de 45 artigos, teses e dissertações.
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13. Pleomorphic Adenoma of the Tongue Base: Case Report and Review
Introduction Pleomorphic adenoma, also known as mixed tumor, is the most common benign tumor of the major and minor salivary glands. The occurrence of pleomorphic adenoma of the tongue base is very rare, and very few cases have been reported in the literature. Objective The authors present a rare case of pleomorphic adenoma of the tongue base and a review
Int. Arch. Otorhinolaryngol.. Publicado em: 2014-09
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14. Análise das características clinicopatológicas, proliferação celular e alterações de número de cópias e metilação de genes supressores de tumor em carcinoma ex-adenoma pleomorfo / Analysis of clinicopathologic features, cell proliferation, and alteration of copies number and methylation of tumor suprressor genes in carcinoma ex-pleomorphic adenoma
O Carcinoma ex-adenoma pleomorfo (CXAP) é uma neoplasia indolente, cuja patogênese ainda não está esclarecida, embora se acredite que resulte do acúmulo de alterações genéticas em adenoma pleomorfo (AP) de longa permanência. No presente estudo, avaliamos os fatores clincopatológicos em uma série de 38 casos de CXAP provenientes de três instituiç
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
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15. Estudo da expressão imuno-histoquímica das MMPs -2, -7, -9 e -26 e TIMPs -1 e -2 em adenomas pleomórficos e carcinomas adenóides císticos de glândulas salivares menores
O balanço entre a expressão das metaloproteinases da matriz (MMPs) e seus inibidores teciduais (TIMPs) tem sido relacionado a vários processos fisiológicos e patológicos, incluindo a morfogênese de glândulas salivares e os processos de invasão e metástase tumoral. O adenoma pleomórfico (AP) e o carcinoma adenóide cístico (CAC) representam, respec
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2011
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16. Pleomorphic adenoma with extensive squamous metaplasia and keratin cyst formations in minor salivary gland: a case report
Pleomorphic adenoma (PA), the most common salivary gland tumor, accounts for 54 to 65% of all salivary gland neoplasias and 80% of the benign salivary gland tumors. It most frequently affects the parotid gland, followed by the submandibular and the minor salivary glands. Microscopically, mucous, sebaceous, oncocytic and squamous metaplasia, sometimes with th
Journal of Applied Oral Science. Publicado em: 2011-04
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17. FGF-2, TGFβ-1, PDGF-A and respective receptors expression in pleomorphic adenoma myoepithelial cells: an in vivo and in vitro study
Myoepithelial cells have an important role in salivary gland tumor development, contributing to a low grade of aggressiveness of these tumors. Normal myoepithelial cells are known by their suppressor function presenting increased expression of extracellular matrix genes and protease inhibitors. The importance of stromal cells and growth factors during tumor
Journal of Applied Oral Science. Publicado em: 2010-02
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18. Immunohistochemical study of androgen, estrogen and progesterone receptors in salivary gland tumors
The aim of this work was to study the immunohistochemical expression of androgen receptor, estrogen receptor and progesterone receptor in pleomorphic adenomas, Warthin's tumors, mucoepidermoid carcinomas and adenoid cystic carcinomas of salivary glands. A total of 41 pleomorphic adenomas, 30 Warthin's tumors, 30 mucoepidermoid carcinomas and 30 adenoid cysti
Brazilian Oral Research. Publicado em: 2009-12
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19. Estudo retrospectivo de 3091 casos de neoplasias epiteliais primarias de glandulas salivares maiores e menores intra-orais / Retrospective study of 3091 cases of primary epithelial salivary gland tumors involving the major and minor glands
The aim of this study was to analyse retrospectively the histological and epidemiological characteristics of 3091 cases of intraoral primary epithelial neoplasms of the minor and major salivary glands. It was included on this study, 1766 cases from Brazil, 544 from the U.S., 405 from Uruguay, 151 from Peru, 134 from Guatemala and 91 from Mexico. Benign tumor
Publicado em: 2009
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20. Alterations of E-cadherin and β-catenin genes in pleomorphic adenoma and adenoid cystic carcinoma: molecular and immunohistochemical study / Alterações nos genes da E-caderina e β-catenina em adenoma pleomórfico e carcinoma adenóide cístico: estudo molecular e imuno-histoquímico
Pleomorphic adenoma and adenoid cystic carcinoma represent a benign and malignant salivary gland neoplasm, respectively, that shares the same histological origin, however with distinct biological behavior. The aim of the present study was identify the -160 C/A polymorphism in the gene CDH1, mutational analysis of CTNNB1 gene and evaluation the expression of
Publicado em: 2008
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21. CorrelaÃÃo da expresÃo da proteÃna p53 comaspectos clÃnicos e histopatolÃgicosem adenomas pleomÃrficos de glÃndula salivar maior
Pleomorphic adenomas (PA) are the most common histologic type of salivary gland tumors. Malignant transformation may occur in the setting of recurrent or longstanding disease. Objective: Evaluate the clinicopathologic characteristics and p53 expression of PA of the major salivary glands. Material and Methods: The clinical and histopathologic characteristics
Publicado em: 2008
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22. Avaliação clinica e histopatologica de tumores da glandula parotida / Clinical and histopathological analysis of parotid gland tumors
Salivary gland tumors are rare, with an annual incidence of about 0,4 to 13,5 cases per 100000 people. Most of the cases affect the parotid gland, representing 64% to 80% of the cases and the majority is benign. The aim of this study was to analyze the main clinical and histopathological features of parotid gland tumors. We select all the patients with prima
Publicado em: 2008
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23. Estudo clínico-epidemiológico de neoplasias de glândula salivar menor no estado da Bahia. / Intraoral menor salivary gland tumors in a Brazilian population: a retrospective study
Minor salivary gland tumors are relatively rare and comprise a diverse group of neoplasms exhibiting complex morphology. The aim of this study was to investigate the clinical and epidemiological features of the minor salivary gland tumors diagnosed at Aristides Maltez Hospital, Salvador, Bahia, between 1976 and 2007. Data regarding the age and sex distributi
Publicado em: 2008
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24. Avaliação da angiogenese e da linfangiogenese durante a progressão tumoral do carcinoma ex-adenoma pleomorfico / Study of the angiogenesis and lymphangiogenesis during tumor progression of carcicoma ex-pleomorphic adenoma
Carcinoma ex-adenoma pleomórfico (CXAP) é uma neoplasia geralmente de alto grau, com risco moderado para metástase cervical. O objetivo do trabalho foi analisar a vascularização tumoral sanguínea e linfática numa série de CXAP, que representam as diferentes fases da seqüência adenoma-carcinoma. Em oito CXAP precoces (intracapsulares ou minimamente
Publicado em: 2007