NUMERO: #20230878

Título: PERIPHERAL ODONTOGENIC MYXOMA VS INFLAMMATORY MYOFIBROBLASTIC TUMOR? REPORT OF AN UNUSUAL CASE OF MYXOID LESION

Nome do Apresentador: Vitórya Carvalho Pádua de Magalhães

Categoria do Trabalho: Painel de caso clínico (PCC)

Área Temática: Estomatologia

Resumo: Odontogenic myxoma is characterized by stellate and fusiform cells scattered in an abundant myxoid extracellular matrix. While the inflammatory myofibroblastic tumor is also composed of spindle cells in association with inflammatory cells.
Thus, the aim of this paper is to report an unusual case of myxoid lesion in the maxilla. A 45-year-old female patient presented with a nodular lesion on the maxilla measuring 5 cm in its greatest extent, reddish in color, with an ulcerated surface and painful symptoms. An incisional biopsy was performed. Morphological analysis revealed fusiform, stellate cells interspersed with a loose stroma. In addition, it was possible to observe areas containing inflammatory cells. Spindle and stellate cells were positive for calponin, HHF-35 and α-SMA, while negative for S-100, CD34, CD68, desmin and H-Caldesmon. Histological diagnosis was myxoid lesion in the maxilla. Given this, we conclude that spindle cell lesions represent a diagnostic challenge for oral pathologists.

Autor 1:  Vitórya Carvalho Pádua de Magalhães

E-mail 1:  [email protected]

Autor 2:   Thayna Melo

E-mail 2:  [email protected]

Autor 3 :  Felipe Peralta

E-mail 3:  [email protected]

Autor 4:  Dárcio Kitakawa

E-mail 4:  [email protected]

Autor 5:  Lineu Perrone Júnior

E-mail 5:  [email protected]

Autor 6:  Luis Felipe das Chagas e Silva de Carvalho

E-mail 6:  [email protected]