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MINERVA STOMATOLOGICA

A Journal on Dentistry and Maxillofacial Surgery


Official Journal of the Italian Society of Odontostomatology and Maxillofacial Surgery
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Minerva Stomatologica 2009 September;58(9):453-8

language: English, Italian

Solitary neurofibroma of the palate. A case report

Mazzoleni S. 1, Stomaci D. 2, Rizzo A. 3, Rigo L. 4, Bressan E. 5, Stellini E. 5

1 Department of Pediatric Dentistry, School of Dentistry, University of Padua, Padua, Italy;
2 Department of Periodontology, School of Dentistry, University of Padua, Padua, Italy;
3 Anatomical Pathology Service, Local Health Unit 8, Castelfranco Veneto, Treviso, Italy;
4 Department of Maxillofacial Surgery, Local Health Unit 8, Castelfranco Veneto, Treviso, Italy;
5 Department of Periodontology, School of Dentistry, University of Padua, Padua, Italy


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The neurofibroma is a benign tumor of neuronal origin not frequently located in the oral cavity. The possible association of this neoplasia with systemic pathologies, such as Von Recklinghausen’s disease and multiple endocrine neoplasia, makes its diagnosis fundamental. The diagnosis is, in most cases, quite complex, because of the neurofibroma’s strong similarities with a great number of benign neoformations of the connective tissue, of the epithelium, and of the bone. The histology represents, therefore, the fundamental diagnostic criterion, in particular, through the use of appropriate immunohistochemical analysis. This articles presents the case of a solitary neurofibroma, subtype I (common Schwann cell type), detected on the left-hand side of the posterior region of the palate in a 56-year-old woman, which presented itself as an otherwise non-symptomatic ulcerated mass. After a careful anamnesis, an incisional biopsy was performed in order to establish the histological nature of the neoformation. The immunohistochemical test, which resulted positive for S-100 and negative for the epithelial membrane antigen and keratin, allowed the diagnosis of a presumably benign lesion deriving from a neural differentiation. The surgical excision of the entire mass was accompanied by the extraction of the upper left-hand second molar, which was attached to the mass through its palatal root.

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dstomaci@yahoo.it