NUMERO: #20240644

Título: ORAL LOW‑GRADE FIBROMYXOID SARCOMA: A CASE REPORT

Nome do Apresentador: Cleiton Rone Dos Santos LIMA

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

Área Temática: Patologia Oral

Resumo: Low-grade fibromyxoid sarcoma is a rare malignant neoplasm of fibroblastic/myofibroblastic origin in the head and neck region. This lesion often arises in deep soft tissues with potential for recurrence and late metastatic dissemination. A 23-year-old woman presented with a symptomatic swelling in the left posterior maxilla, evolving over 2 months, with an erythematous, ulcerated surface and evident telangiectasia. Computed tomography showed a hypodense osteolytic lesion located between tooth 27 and the maxillary tuberosity, with undefined borders and involvement of the left maxillary sinus. An incisional biopsy was performed, and histological analysis revealed a fibromyxoid neoplasm. Immunohistochemical staining was positive for AML, SATB2, Vimentin, and negative for SOX10, CD34, S100, Desmin. Considering both analyses, the final microscopic diagnosis was low-grade fibromyxoid sarcoma. The patient underwent surgical removal of the lesion, and after 12 months of clinical and radiographic follow-up, there are no signs of recurrence.

Autor 1:  Cleiton Rone Dos Santos LIMA

E-mail 1:  [email protected]

Autor 2:   Victor Hugo Lopes de Oliveira MOREIRA

E-mail 2:  [email protected]

Autor 3 :  Victor de Paula COELHO

E-mail 3:  [email protected]

Autor 4:  Bruno Miranda Silva LIMA

E-mail 4:  [email protected]

Autor 5:  Elismauro Francisco de MENDONÇA

E-mail 5:  [email protected]

Autor 6:  Diego Antonio Costa ARANTES

E-mail 6:  [email protected]