Estudo da prevalência e patogênese das células claras em lesões odontogênicas císticas

• Autor(a) principal: Carvalho, Laura Priscila Barboza de
• Data de Publicação: 2011
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da UFPB
• Texto Completo: https://repositorio.ufpb.br/jspui/handle/tede/6639
• topic: Cistos odontogênicos; Tumores odontogênicos; Metaplasia; Prosoplasia; Odontogenic Cysts; Odontogenic tumor; Metaplasia; Prosoplasia; CNPQ::CIENCIAS DA SAUDE::ODONTOLOGIA

Metaplastic and degenerative changes are usually observed in the epithelial lining of odontogenic cysts. These processes in odontogenic tumors are considered rare. This study aimed to conduct a study to assess the presence and biological significance of clear cells in the epithelial lining of a series of odontogenic cystic lesions. A total of 48 histological slides of these lesions were examined by two calibrated examiners. The paraffin blocks corresponding to the lesions that were observed in clear cell were re-processed and 22 slides were stained by the periodic acid Schiff (PAS) after diastase digestion, and evaluated for the presence of mucous cells. It was performed a descriptive statistical analysis of data and these were represented as graphs and tables. Mucous cells were found in 41,66% cases of radicular cysts, 50% of keratocystic odontogenic tumors, 100% of dentigerous cysts and 100% of unicystic ameloblastomas. The results of this research may suggest that degenerative and metaplastic phenomena usually occur in the epithelium of odontogenic cysts and odontogenic cystic tumors, which may represent a phenomenon associated with the chronic inflammatory process that is usually observed in these lesions, or be indicative of the multipotentiality odontogenic epithelium.