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Aggressive Pregnancy Tumor (Pyogenic Granuloma) with Extensive Alveolar Bone Loss Mimicking a Malignant Tumor: Case Report and Review of Literature International Journal of Morphology
Martins-Filho,Paulo Ricardo Saquete; Piva,Marta Rabello; da Silva,Luiz Carlos Ferreira; Reinheimer,Daniele Machado; Santos,Thiago de Santana.
Oral pyogenic granuloma is a hyperplastic inflammatory lesion commonly associated to local irritation or trauma. Females are more affected than men probably due to the vascular effects of hormones that occur during puberty, pregnancy and menopause. In the pregnancy, the lesions are known as "pregnancy tumor" and tend to occur more frequently during the second and third trimester. In the oral cavity, histopathological examination is required for diagnosis, since the lesion is clinically indistinguishable from other reactive lesions and, usually, there is no evidence of bone involvement. The authors report a rare case of pyogenic granuloma with destruction of alveolar bone mimicking a malignant tumor in a 20-year-old woman in the 19th week of pregnancy.
Tipo: Journal article Palavras-chave: Pyogenic granuloma; Pregnancy tumor; Granuloma gravidarum.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000100028
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Bilateral Bifid Mandibular Condyle: A Case Report International Journal of Morphology
Melo,Suzana Lubambo de; Barbosa,Joanna Martins Novais; Peixoto,Aline Carvalho; Santos,Thiago de Santana; Gerbi,Marleny.
The bifid mandibular condyle is an exceedingly rare anomaly, frequently diagnosed as an incidental finding in a panoramic radiograph. Its etiology and pathogenesis are unknown, though the most acceptable theory suggests that trauma is at the origin of the condition. This article reports a new case of bilateral bifid condyle in a 21-year-old female with history of trauma in childhood.
Tipo: Journal article Palavras-chave: Condylar process; Mandibular condyle; Anatomic variation; Computed tomography.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300043
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Immunohistochemical Analysis of Human Homologue of Drosophila Patched (PTCH) in Dental Follicles of Impacted Third Molars International Journal of Morphology
Oliveira,David Moraes de; Silveira,Márcia Maria Ferreira da; Andrade,Emanuel Sávio de Souza; Sobral,Ana Paula Veras; Martins-Filho,Paulo Ricardo Saquete; Santos,Thiago de Santana; Oliveira,Patrícia Leimig Amorim de; Peixoto,Aline Carvalho; Santos,Jadson Alípio Santana de Souza; Piva,Marta Rabello.
This study investigated the immunodetection of PTCH in epithelial components of dental follicles associated with impacted third molars without radiographic signs of pathosis. One hundred and five specimens of dental follicles associated with impacted third molars with incomplete rhizogenesis (between Nolla's stage 6 and 9) were surgically removed from 56 patients. Epithelial cell proliferation was determined by using immunohistochemical labeling. Statistical analysis was performed using Fisher exact test and a level of significance of 5%. Of the 105 dental follicles collected, 3 were PTCH-positive. The specimens with squamous metaplasia and epithelial hyperplasia had higher rates of positivity for PTCH, as well as those with active remnants of odontogenic...
Tipo: Journal article Palavras-chave: Immunohistochemistry; Dental follicle; Odontogenic epithelial; PTCH.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000100018
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Immunohistochemical Analysis of Proliferating Cell Nuclear Antigen (PCNA) in Dental Follicles of Impacted Third Molars International Journal of Morphology
Oliveira,David Moraes de; Silveira,Márcia Maria Ferreira da; Andrade,Emanuel Sávio de Souza; Sobral,Ana Paula Veras; Martins-Filho,Paulo Ricardo Saquete; Santos,Thiago de Santana; Oliveira,Patrícia Leimig Amorim de.
This study investigated the immunodetection of PCNA in epithelial components of dental follicles associated with impacted third molars without radiographical and morphological signs of pathosis. A total of 105 specimens of dental follicles associated with impacted third molars with incomplete rhizogenesis (between Nolla's stage 6 and 9) were surgically removed from 56 patients. Epithelial cell proliferating was determined by using immunohistochemical labeling. Statistical analysis was performed using the Fisher exact test. Of the 105 dental follicles collected, 6 were PCNA-positive ( 6%). The specimens with squamous metaplasia and epithelial hyperplasia had higher rates of positivity for PCNA, as well as those with proliferative remnants of odontogenic...
Tipo: Journal article Palavras-chave: Immunohistochemistry; Dental Sac; Third Molar.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000200037
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