5 documents found, page 1 of 1
Immunohistochemical expression of matrilysins (MMP-7 and MMP-26) in ameloblasto...
Freitas, Valéria Souza; Araújo, Cristina Ruan Ferreira de; Alves, Pollianna Muniz; Souza, Lelia Batista de; Galvão, Hebel CavalcantiOBJECTIVE: The aim was to evaluate the expression of matrix metalloproteinases (MMPs) 7 and 26 in ameloblastomas and adenomatoid odontogenic tumors (AOTs). STUDY DESIGN: Twenty intraosseous solid ameloblastomas and 10 intraosseous AOTs were evaluated regarding immunohistochemical expression of MMP-7 and -26 in the epithelium and stroma. RESULTS: There was no statistically significant difference in MMP-7 and -26...
Changes in immunoexpression of E-cadherin and beta-catenin in oral squamous cel...
Lopes, Fernanda Ferreira; Miguel, Marcia Cristina da Costa; Pereira, Antônio Luiz Amaral; Cruz, Maria Carmen Fontoura Nogueira daThe aim of this study is to analyze the immunohistochemical expression of E-cadherin and beta-catenin in oral squamous cell carcinoma to better understand the biological behavior of this lesion. The sample consisted of 15 cases of the tongue and 15 of the lower lip. The pattern and intensity of the labeling and the analysis of the percentage of tumor cells immunopositive in membrane for E-cadherin and beta-cate...
Botryoid odontogenic cyst: a clinicopathologic study of 10 cases
Santos, Pedro Paulo de Andrade; Freitas, Valéria Souza; Freitas, Roseana de Almeida; Pinto, Leão Pereira; Souza, Lelia Batista deBotryoid odontogenic cyst is a rare multilocular variant of lateral periodontal cysts. In this study, a series of 10 cases of botryoid odontogenic cysts retrieved from the archives of the Postgraduation Program in Oral Pathology, Federal University of Rio Grande do Norte (Brazil), were reviewed for epidemiologic data, clinical presentation, radiographic and histopathologic characteristics, treatment, and recurr...
Collagen IV and laminin expression in squamous cell carcinomas of lower lip and...
Miranda, João Luiz de; Douglas de Oliveira, Dhelfeson Willya; Menezes-Silva, Rafael; Freitas, Roseana de AlmeidaObjective: In this study, the expression of the extracellular matrix proteins was immunohistochemically studied and compared with the histological grading of squamous cell carcinomas of the lower lip and tongue. Material and Methods: The lower lip carcinomas (n=12) and the tongue carcinomas (n=12) were histopathologically graduated according to Bryne’s method. The immunohistochemical technique utilized specific...
Intra-oral spitz naevus: a case report
Xavier, Ruth Lopes de Freitas; Vasconcelos, Marcelo Gadelha; Galvão, Hébel Cavalcanti; Freitas, Roseana de Almeida; Souza, Evânia Leiros de