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Which features of advanced head and neck basal cell carcinoma are associated with perineural invasion?

Perineural invasion is a unique route for tumor dissemination. In basal cell carcinomas, the incidence is low, but increases in advanced cases. Its importance is recognized but not fully understood. To compare head and neck basal cell carcinomas with and without perineural invasion. A retrospective...

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Bibliographic Details
Published in:Brazilian journal of otorhinolaryngology 2017-01, Vol.83 (1), p.94-97
Main Authors: Santos, André Bandiera de Oliveira, Andrade, Natália Martins Magacho de, Brandão, Lenine Garcia, Cernea, Claudio Roberto
Format: Article
Language:English
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Summary:Perineural invasion is a unique route for tumor dissemination. In basal cell carcinomas, the incidence is low, but increases in advanced cases. Its importance is recognized but not fully understood. To compare head and neck basal cell carcinomas with and without perineural invasion. A retrospective medical chart review of multidisciplinary surgeries for basal cell carcinomas that required a head and neck surgery specialist in a tertiary referral center was performed. Clinical-demographics and histopathological features were analyzed. Of 354 cases, perineural invasion was present in 23.1%. Larger tumors and morpheaform subtype were statistically related to perineural invasion. Nodular and superficial subtypes were less frequent in positive cases. No significant difference was found in gender, age, ulceration, location, and mixed histology. In this series of selected patients with basal cell carcinomas submitted to major resections, perineural invasion was clearly related to morpheaform subtype and to larger tumors. Other classically associated features, such as location in high-risk mask zone of the face, male gender and mixed histology, were not so strongly linked to perineural invasion. A invasão perineural é uma via independente de disseminação tumoral. Em carcinomas basocelulares, a incidência é baixa, mas aumenta em casos avançados. Sua importância é reconhecida mas não completamente compreendida. Comparar os carcinomas basocelulares com e sem invasão perineural. Estudo retrospectivo de revisão de prontuários de pacientes submetidos a cirurgias de grande porte, conduzida por equipes multidisciplinares em centro terciário de referência de câncer. Características demográficas e histopatológicas foram analisadas. De 354 casos; 23,1% apresentaram invasão perineural. Tumores com dimensão maior e subtipo esclerodermiforme foram significativamente mais associados a invasão perineural. Os subtipos nodular e superficial foram menos frequentes em casos positivos. Não houve diferença relacionada a sexo, idade, ulceração, localização e histologia mista. Nessa série de casos selecionados de carcinomas basocelulares submetidos a grandes ressecções, a invasão perineural foi claramente relacionada ao subtipo esclerodermiforme e tumores de maior dimensão. Outros fatores classicamente associados, como localização em zona de alto risco, sexo masculino e histologia mista não apresentaram essa associação de modo significativo.
ISSN:1808-8694
1808-8686
1808-8686
DOI:10.1016/j.bjorl.2016.01.009