NUMERO: #20230227

Título: Sarcoma de Ewing. Presentación de un caso.

Nome do Apresentador: Carlos Humeres Sigala

Categoria do Trabalho: Apresentação oral de casos clínicos (AOC)

Área Temática: Patologia Oral

Resumo: Ewing´s sarcoma is an extremely rare tumor, constituting between 6-8% of malignant bone tumors. It is considered the second most common sarcoma in children. Intraoral presentation is considered rare and infrequent.

A 61-year-old male patient consulted for increased eyeball volume associated with nosebleeds. On intraoral clinical examination, he presented with a tumor that compromised the palate, alveolar ridge, and mucosa on the left side, measuring approximately 5 x 3 cm, with a hard and painful consistency.

CT scan showed a solid lesion that occupied the entire right maxillary sinus with thinning of the roof of the orbit. Histopathology analysis revealed a proliferation of monotonous round cells with fine chromatin nucleoli. The immunohistochemical study was positive for CD99, CD56, FLI-1, and SYNAPTOPHYCIN.

The diagnosis of an aggressive Neuroectodermal Tumor (Ewing Sarcoma) was established. Its prognosis in adults is poor, and its management is mainly multimodal, as it is a radiosensitive tumor

Autor 1:  Carlos Humeres Sigala

E-mail 1:  [email protected]

Autor 2:   Pablo Cordova Gonzalez

E-mail 2:  [email protected]

Autor 3 :  Renata Kratc Botero

E-mail 3:  [email protected]

Autor 4:  Sergio Vidal Gill

E-mail 4:  [email protected]

Autor 5:  Edgardo Mancilla Sierpe

E-mail 5:  [email protected]

Autor 6:  Javier Contreras Feo

E-mail 6:  [email protected]

Autor 7:  Tamara Contreras Huerta

E-mail 7:  [email protected]