Case Reports in Dentistry

Ana Amelia Souza ¹, Eldon Guttenberg Cariri Neto ¹, Vera Cavalcanti de Araujo ¹, Fabricio Passador-Santos ¹, Maria Teresa de Seixas Alves ², Andresa Borges Soares ¹

Affiliations
1 Department of Oral Pathology, Sao Leopoldo Mandic Institute and Research Center, Rua Jose Rocha Junqueira13, Ponte Preta, 13045-755 Campinas, SP, BR
2 Department of Pathology, Escola Paulista de Medicina, Rua Botucatu 740, Vila Clementino, 04023-900 Sao Paulo, SP, BR

Abstract

This report describes a rare case of nodular fasciitis (NF) of the oral cavity, discussing the clinical, histological, and immunohistochemical characteristics. Histopathologic diagnosis of this type of lesion can be challenging due to its differential diagnosis, which principally includes sarcoma.The patient presented with a painless, well-defined nodule, reported as increasing in size, located at the apical aspect of the upper left buccal sulcus. Histologically, the lesion revealed spindle cell proliferation arranged in fascicles, while immunohistochemistry demonstrated positivity for smooth muscle actin. Eight months after complete surgical excision, no signs of local recurrence have been observed.

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