Abstract
Oral verrucous carcinoma (OVC) is a rare variant of squamous cell carcinoma with a characteristic morphology and specific behavior. To date, few studies are available focusing the prevalence and clinicopathologic features of the oral verrucous carcinoma in Brazilian population. A total of 3,500 primary oral well-differentiated squamous cell carcinoma surgically excised in the A.C. Camargo Cancer Hospital and Amaral Carvalho Cancer Hospital, Brazil, from 1980 to 2000 were retrospectively reviewed. Twenty cases of verrucous carcinomas were identified, most of them occurring in older male with age above the sixth decade, the sites frequently affected being the lower lip and the hard palate. Microscopically, the tumor showed a heavily keratinized lesion with compressive invasion pattern, little atypia, and free surgical margins. The local recurrence was verified in 38.5% of the patients with oral verrucous carcinoma; however, regional recurrence and distant metastasis were not verified. The results suggest that, although it is less frequent and with excellent prognosis, the verrucous carcinoma presents a potential for local recurrence that should be considered during the surgical planning of this neoplasm in the oral cavity.
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The authors thank FAPESP (Fundação de Amparo à Pesquisa do Estado de São Paulo, grant 03/14141-3) and CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) for supporting this study.
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Oliveira, D.T., de Moraes, R.V., Filho, J.F.F. et al. Oral verrucous carcinoma: a retrospective study in São Paulo Region, Brazil. Clin Oral Invest 10, 205–209 (2006). https://doi.org/10.1007/s00784-006-0050-7
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DOI: https://doi.org/10.1007/s00784-006-0050-7