NUMERO: #20260372

Título: SOLITARY FIBROUS TUMOR OF THE LOWER LIP: A CASE REPORT

Nome do Apresentador: Olímpio Francisco da COSTA NETO

Categoria do Trabalho: Pôster - Relato de Caso ou Série de Casos

Área Temática: Patologia Oral

Resumo: Solitary Fibrous Tumor (SFT) is an uncommon mesenchymal neoplasm of uncertain etiology. Although it primarily affects the pleura, it has also been reported in extrapleural sites, where it generally behaves benignly. In the oral cavity, it predominantly affects the buccal mucosa and tongue of women between the 4th and 5th decades of life. An 81-year-old woman presented with a firm, color-matched mass on the lower lip mucosa that had been present for one year, with a clinical diagnostic hypothesis of lipoma. An excisional biopsy was performed, and histopathological examination revealed a biphasic pattern of spindle cell proliferation surrounding blood vessels with irregular branching. Alternating hypocellular and hypercellular areas were observed, with a predominance of dense fibrous connective tissue and no signs of malignancy. Immunohistochemical analysis was positive for STAT6, CD34 and Bcl-2, supporting the diagnosis of SFT. The patient has been under follow-up for 10 months with no recurrence.

Autor 1:  Olímpio Francisco da COSTA NETO

E-mail 1:  [email protected]

Autor 2:   Flávia Vanessa Aguiar GOMES

E-mail 2:  [email protected]

Autor 3 :  Martinho Dinoá MEDEIROS JÚNIOR

E-mail 3:  [email protected]

Autor 4:  Elaine Judite de Amorim CARVALHO

E-mail 4:  [email protected]

Autor 5:  Águida Cristina Gomes Henriques LEITÃO

E-mail 5:  [email protected]

Autor 6:  Pablo Agustin VARGAS

E-mail 6:  [email protected]

Autor 7:  Danyel Elias da Cruz PEREZ

E-mail 7:  [email protected]