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Search Results: 1 - 10 of 190498 matches for " Cláudia Roberta Leite Vieira de Figueiredo "
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Carcinoma ameloblástico de mandíbula
Leite Vieira de Figueiredo,Cláudia Roberta; Farias de Paiva,Marcos Ant?nio; Barboza de Carvalho,Laura Priscila; Brasileiro Junior,Vilson Lacerda;
Revista Cubana de Estomatolog?-a , 2012,
Abstract: the term ameloblastic carcinoma is used to describe the ameloblastomas with histological characteristics of malignancy. this type of lesion may to occur in any age, but it may be more frequent observed in the fourth decade of life. the is not apparently a predominance sexual. the commonest involved area is the posterior portion of mandible involving in less extent the maxillary. this is a tumor with few cases mentioned in the literature, thus, the aim of present paper was to present a case of ameloblastic carcinoma in a female patient aged 38 came to consultation due to painful symptoms and facial asymmetry. in intrabuccal clinical examination it was noted a volume increase in the right posterior region of mandible. the computed tomography showed a slimming of the cortex with presence of a homogenous hypo-dense area. an incisional biopsy was made and its initial histological diagnosis was an ameloblastoma without histological characteristics of malignancy. after histopathological examination the surgical treatment of lesion was prescribed with a partial resection of mandible. the surgical structure (sample) was sent to laboratory to obtain a new diagnosis of ameloblastic carcinoma. it is probable that the difference of final histological diagnosis with the initial one could be related to the fact that the ameloblastic carcinoma has focal areas similar to ameloblastoma. after 6 months of surgical procedure the patient had tumoral lung metastasis and is under medical supervision.
Carcinoma ameloblástico de mandíbula Carcinoma ameloblástico de la mandíbula Ameloblastic carcinoma of the mandible
Cláudia Roberta Leite Vieira de Figueiredo,Marcos Ant?nio Farias de Paiva,Laura Priscila Barboza de Carvalho,Vilson Lacerda Brasileiro Junior
Revista Cubana de Estomatolog?-a , 2012,
Abstract: O termo carcinoma ameloblástico é usado para descrever ameloblastomas com características histológicas de malignidade. Les es desse tipo podem ocorrer em uma extensa faixa etária, sendo mais comum na quarta década de vida. N o há predile o aparente por sexo, a área mais comumente afetada é a por o posterior da mandíbula, envolvendo em menor propor o a maxila. Por se tratar de um tumor com poucos casos descritos na literatura, o objetivo deste trabalho foi relatar um caso de carcinoma ameloblástico em paciente do sexo feminino, 38 anos, com queixa de dor e assimetria facial. Ao exame clínico intrabucal observou-se um aumento de volume em regi o posterior de mandíbula, do lado direito. A tomografia computadorizada revelou adelga amento das corticais com presen a de área hipodensa homogênea. Foi realizada biópsia incisional cujo diagnóstico histológico inicial foi de ameloblastoma, sem características citológicas de malignidade. Baseando-se no exame histopatológico, optou-se pelo tratamento cirúrgico da les o através da ressec o parcial da mandíbula. A pe a cirúrgica foi encaminhada ao laboratório obtendo-se novo diagnóstico de carcinoma ameloblástico. Provavelmente, a diferen a do diagnóstico histológico final para o inicial pode estar relacionada ao fato de o carcinoma ameloblástico apresentar áreas focais semelhantes ao ameloblastoma. Após 6 meses da cirurgia, a paciente apresentou metástase tumoral no pulm o e encontra-se sob supervis o médica. El término carcinoma ameloblástico es utilizado para describir ameloblastomas con características histológicas de malignidad. Este tipo de lesión puede ocurrir en cualquier edad, pero se puede observar con mayor frecuencia en la cuarta década de vida. No existe aparentemente un sexo predominante. El área más comúnmente afectada es la porción posterior de la mandíbula y afecta en menor proporción el maxilar. Por ser un tumor con pocos casos relatados en la literatura, el objetivo de este trabajo fue presentar un caso de carcinoma ameloblástico en un paciente del sexo femenino con 38 a os de edad, que acudió a la consulta por presentar síntomas dolorosos y asimetría facial. Al examen clínico intrabucal se observó un aumento de volumen en la región posterior derecha de la mandíbula. La tomografía computadorizada mostró un adelgazamiento de las corticales con presencia de un área hipodensa homogénea. Fue realizada una biopsia incisional y su diagnóstico histológico inicial fue de un ameloblastoma sin características citológicas de malignidad. Después de realizado el examen histopatológico se optó por el tratamien
Calcifying Epithelial Odontogenic Tumor
Olavo Hoston Gon?alves Pereira,Laura Priscila Barboza de Carvalho,Vilson Lacerda Brasileiro Junior,Cláudia Roberta Leite Vieira de Figueiredo
Case Reports in Pathology , 2013, DOI: 10.1155/2013/725380
Abstract: The calcifying epithelial odontogenic tumor (CEOT) is a rare benign epithelial odontogenic neoplasm of slow growth that is locally aggressive and tends to invade bone and adjacent soft tissue. Here is reported the case of a 21-year-old female patient with a CEOT in the left mandibular posterior region. The computerized tomography in coronal plane revealed a hypodense lesion in the posterior region of the left mandibular body with hyperdense areas inside and was associated with element 37. An incisional biopsy of the lesion was performed and the histopathological analysis revealed the presence of layers of epithelial odontogenic cells that formed prominent intercellular bridges. A large quantity of extracellular, eosinophilic, and amyloid-like material and an occasional formation of concentric calcifications (Liesegang rings) were also found. The histopathological diagnosis was a Pindborg tumor. Resection of the tumor with a safety margin was performed and after 6 months of follow-up there has been no sign of recurrence of the lesion. 1. Introduction The calcifying epithelial odontogenic tumor (CEOT) or Pindborg tumor is a rare benign epithelial odontogenic neoplasm [1, 2], with approximately 200 reported cases in the literature [3]. In general it occurs as a slow-growing tumor [4], associated with an impacted tooth in the posterior mandibular region [5, 6]. This occurs predominantly between the fourth and fifth decades of life, with no preference of gender [2–4]. Radiographically, CEOT is characterized by a uni- or multilocular lesion that often shows a mixed radiolucent-radiopaque pattern [6]. Treatment consists in the surgical removal of the lesion, with recurrence in 14% of cases [5]. The prognosis is considered good [6]. 2. Case Report A 21-year-old black female patient sought treatment at the Oral and Maxillofacial Trauma Surgery Unit, with swelling in the mandibular left posterior region. While performing the intraoral physical exam an asymptomatic hardened exophytic nodule was found in region 37 (Figure 1). Figure 1: Intraoral aspect of the lesion, characterized by a hardened nodular and exophytic mass in the mandibular body, on the left side. The patient reported a clinical evolution of only five months of the lesion. A radiographic exam revealed a diffuse radiolucent, unilocular lesion, associated with region 37, yet including the distal root of region 36 up to the crown of region 38 (Figure 2). Using a computerized tomography in coronal section, it was possible to observe that it was a question of a local hypodense lesion in the mandibular
Immunohistochemical evaluation of the inflammatory response in periodontal disease
Lins, Ruthinéia Diógenes Alves Uch?a;Figueiredo, Cláudia Roberta Leite Vieira;Queiroz, Lélia Maria Guedes;Silveira, Ericka Janine Dantas da;Godoy, Gustavo Pina;Freitas, Roseana de Almeida;
Brazilian Dental Journal , 2008, DOI: 10.1590/S0103-64402008000100002
Abstract: in order to contribute to the knowledge of the pathogenesis of periodontal disease, an immunohistochemical analysis of the density of inflammatory mononucleated cells and the number of dendritic cells was performed using anti-cd4, anti-cd20, anti-cd25, anti-cd68 and anti-protein s-100 antibodies in 17 cases of chronic gingivitis (cg) and 25 of chronic periodontitis (cp). the cd4+ and cd68+ cells exhibited a diffuse distribution in the connective tissue. cd20+ cell distribution was predominantly in groups and the cd25+ cells exhibited a diffuse or focal distribution. the s-100+ cells were identified in the epithelium and the lamina propria, exhibiting distinct morphology and number. the statistical analysis showed no significant differences (p>0.05) between cg and cp regarding the density of the cd4+ and cd20+ cells and the number of s-100+ cells. however, significant differences (p<0.05) were found between the groups in the density of cd25+ and cd68+ cells . the density of macrophages was greater in cg and the level of cellular activation of the lymphocyte infiltrate was greater in cp. no differences were detected between the aforementioned conditions regarding the density of the t and b lymphocytes and to the number of the dendritic cells.
Odontogenic tumors: analysis of 127 cases
SANTOS, Jean Nunes;PEREIRA PINTO, Le?o;FIGUEREDO, Cláudia Roberta Leite Vieira de;SOUZA, Lélia Batista de;
Pesquisa Odontológica Brasileira , 2001, DOI: 10.1590/S1517-74912001000400007
Abstract: one hundred and twenty-seven cases of histologically confirmed odontogenic tumors were retrieved from a total of 5,289 oral and maxillary lesions diagnosed at the division of oral pathology, federal university of rio grande do norte, during a period of 30 years (l970-l999). the most common histological diagnosis was odontoma (50.40%), followed by ameloblastoma (30.70%). the prevalence of odontogenic tumors was greater in females and the peak incidence occurred in the second and third decades of life. the main anatomical location was the mandible, and no malignant tumors were found.
Odontogenic tumors: analysis of 127 cases
SANTOS Jean Nunes,PEREIRA PINTO Le?o,FIGUEREDO Cláudia Roberta Leite Vieira de,SOUZA Lélia Batista de
Pesquisa Odontológica Brasileira , 2001,
Abstract: One hundred and twenty-seven cases of histologically confirmed odontogenic tumors were retrieved from a total of 5,289 oral and maxillary lesions diagnosed at the Division of Oral Pathology, Federal University of Rio Grande do Norte, during a period of 30 years (l970-l999). The most common histological diagnosis was odontoma (50.40%), followed by ameloblastoma (30.70%). The prevalence of odontogenic tumors was greater in females and the peak incidence occurred in the second and third decades of life. The main anatomical location was the mandible, and no malignant tumors were found.
Linfangioma bucal del tipo capilar: Reporte de un caso en un paciente adulto Capillary buccal lymphangioma: Case report in adult patient
Fabiano Gonzaga Rodrigues,Tania Lemos Coelho Rodrigues,Danilo Batista Martins Barbosa,Cláudia Roberta Leite Vieira de Figuereido
Revista Cubana de Estomatolog?-a , 2007,
Abstract: Se describe un caso clínico de linfangioma localizado en la mucosa bucal de un paciente de 68 a os de edad, tratado con eletrocauterización. La presentación del caso comprende una breve revisión de la literatura; se aborda el diagnóstico y las características clínico-patológicas en el tratamiento del linfagioma bucal. In this paper, the authors describe a case report of a buccal lymphangioma localizeted in jugal mucosa of a sixty eight years old patient, treated by the electrocauterization. Also, they present a literature revision approaching the diagnosis, the clinical and histopathological characteristics, and the different types of treatment of the buccal lymphangioma.
Linfangioma bucal del tipo capilar: Reporte de un caso en un paciente adulto
Gonzaga Rodrigues,Fabiano; Lemos Coelho Rodrigues,Tania; Batista Martins Barbosa,Danilo; Leite Vieira de Figuereido,Cláudia Roberta; Ferreire-Rocha,Julierme;
Revista Cubana de Estomatolog?-a , 2007,
Abstract: in this paper, the authors describe a case report of a buccal lymphangioma localizeted in jugal mucosa of a sixty eight years old patient, treated by the electrocauterization. also, they present a literature revision approaching the diagnosis, the clinical and histopathological characteristics, and the different types of treatment of the buccal lymphangioma.
Associa??o entre displasia e inflama??o em queilite actínica
Paiva, Marcos Antonio Farias de;Soares, Maria Sueli Marques;Figueiredo, Cláudia Roberta L. Vieira de;Luna, Aníbal Henrique;Oliveira, Victor Eric Nóbrega de;Brasil Júnior, Ozawa;
Jornal Brasileiro de Patologia e Medicina Laboratorial , 2012, DOI: 10.1590/S1676-24442012000600011
Abstract: introduction: actinic cheilitis may undergo malignant transformation to squamous cell carcinoma. furthermore, there is evidence that inflammatory components may be involved in this process, hence the importance of studies involving cellular atypia and chronic inflammation in this lesion. objective: the aim of this study was to evaluate the histological features of actinic cheilitis considering the degree of dysplasia, the intensity of inflammatory infiltrate and the possible correlation between the variables. material and methods: we selected 45 paraffin blocks of lesions with clinical and histopathological diagnosis of actinic cheilitis that enabled histopathological evaluation. the histopathological analysis was performed and the dysplasias and inflammatory infiltrates were classified into mild, moderate and severe. data were analyzed through descriptive statistics, chi-square test and analysis of variance (anova), considering p < 0.05. results: 59.5% (27) of cases of actinic cheilitis showed some degree of dysplasia, from which 40% (18) presented mild dysplasia, 11.1% (5) moderate and 8.4% (4) severe. squamous cell carcinoma occurred in 20% (9) of the specimens. all cases showed some degree of inflammation, from which 48.9% (22) showed mild inflammatory infiltrate, 20% (9) moderate and 31.1% (14) intense. there was a statistically significant association between the degree of dysplasia and the intensity of inflammatory infiltrate, namely anova p = 0.000 and chi-square p = 0.004. conclusions: the results indicate that the occurrence of dysplasia and squamous cell carcinoma are common in actinic cheilitis and the inflammatory process was closely related to the progression of epithelial atypia.
Expresión inmunohistoquímica de la población celular macrofágica en la enfermedad periodontal. Immunohistochemical expression of macrophagic cellular population in periodontal disease.
Ruthinéia Diógenes Alves Uch?a,Claúdia Roberta Leite Vieira de FIGUEIREDO,Gustavo Pina Godoy,Ericka Janine Dantas da Silveira
Acta Odontológica Venezolana , 2006,
Abstract: El papel de la respuesta inmunológica en la patogénesis de la enfermedad periodontal constituye tema constante de investigación por diversos autores. En el presente trabajo se propuso realizar un análisis inmunohistoquímico de la densidad y del patrón de distribución de la población celular macrofágica utilizando el anticuerpo anti-CD68 en 17 casos de gingivitis crónica y 25 de periodontitis crónica. Las células CD68+ se distribuyeron difusamente por todo el tejido conectivo. El análisis estadístico reveló diferencia significativa entre los especimenes estudiados (p < 0,05), siendo la densidad de las células macrofágicas mayor en la gingivitis crónica. Los resultados observados sugieren una mayor participación de esas células en la patogénesis de la gingivitis. The important function of immunological reaction in periodontal disease has been studied by several reports. In order to achieve contributive information to the knowledge of the pathogeny of this disease, an immunohistochemical analysis of the density and distribution of macrophagic cells was realized using anti-CD68 antibody in 17 cases of chronic gingivitis and 25 cases of chronic periodontitis. The CD68+ cells exhibited diffuse distribution in the connective tissue. The statistical analysis shown differences in relation to the density of this cells between the groups (p < 0,05), where the density of macrophacgic cells was higher in the chronic gingivitis. Its results can infer that the macrophagic cells has greated role in the pathogenesis of gingivitis.
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