NUMERO: #20240730

Título: FIBRO-OSSEOUS LESIONS OF THE JAWS: A 53-YEAR RETROSPECTIVE STUDY IN A SINGLE BRAZILIAN INSTITUTION

Nome do Apresentador: Débora Frota COLARES

Categoria do Trabalho: Painel de pesquisa científica (PPC)

Área Temática: Patologia Oral

Resumo: Objective: To describe the clinicopathological profile of jaws' fibro-osseous lesions (FOL) diagnosed at a Brazilian oral pathology center. Study Design: This retrospective study analyzed records and histological slides of fibrous dysplasias (FD), cemento-osseous dysplasias (COD), cemento-ossifying fibromas (COF), and ossifying fibromas (OF) diagnosed in a 53-year period. Results: Of 19.600 cases, 156 (0.8%) were OFL, represented by CODs (37.2%), FDs (25.6%), COFs (25.6%) and OFs (11.6%). Regarding COD subtypes, 13% corresponded to focal COD and 13% to florid. Among the 18 OFs, 55.5% corresponded to juvenile trabecular subtype and 22.2% to psamommatoid. Fibro-osseous lesions commonly affected females (75.6%) in 4th decade of life and presented as asymptomatic (75.0%) mandibular lesions (57.4%). Radiographic features included mixed radiolucency (53.8%), with COD and COF presenting well-defined borders (41.9% and 27.9%), while it was poorly defined in FD and OF (30.8% and 17.9%). Microscopically, peritrabecular clefting was common in FD and COF (38.8%, 25.0%). Lesional bone tissue of COD and FD was completely merged with peripheral normal adjacent bone (45.5% and 42.4%), whereas COF and OF were frequently not merged (46.4% and 21.4%) and encapsulated (66.7% and 11.5%). Conclusion: Retrospective studies on clinic-radiographic-histological profile of FOLs might aid in the diagnosis of these lesions.

Autor 1:  Débora Frota COLARES

E-mail 1:  [email protected]

Autor 2:   Hannah Gil Farias de MORAIS

E-mail 2:  [email protected]

Autor 3 :  Maurília Raquel de Souto MEDEIROS

E-mail 3:  [email protected]

Autor 4:  Caio César BARROS

E-mail 4:  [email protected]

Autor 5:  Eros Ruan de MEDEIROS

E-mail 5:  [email protected]

Autor 6:  Márcia Cristina da Costa MIGUEL

E-mail 6:  [email protected]

Autor 7:  Roseana de Almeida FREITAS

E-mail 7:  [email protected]