Prognostic factors for recurrence in basal cell carcinoma of the face
Fatores prognósticos de recidiva no carcinoma basocelular da face

ABSTRACT

Basal cell carcinomas are very prevalent; although indolent, these tumors have a significant potential for local invasion. The aim of this study was to determine the risk factors of these tumors according to recurrence risk areas on the face. All consecutive cases of primary surgical resections between Jan. 2013 and Jan. 2014 at Hospital de Clínicas de Porto Alegre (HCPA) were reviewed. Method of reconstruction, graft or flap, the low or high-risk areas of the face and histological proof of basal cell carcinomas were considered. Of the 539 cases analyzed, 19 (3,5%) recurred within the first 30 months. Lateral or deep surgical compromised margins showed a significantly increased risk (RR 3.0) to relapse and decrease recurrence free period. Greater attention to excision margins and at least 36 months, is considered appropriate as follow-up of these cases in a University Attached Hospital such as HCPA.

Keywords: Basal cell carcinoma; Face; Local neoplasm recurrence; Risk factors; Minor surgical procedures

RESUMO

Carcinomas basocelulares (CBCs) são muito prevalentes; embora indolentes, esses tumores possuem um potencial significativo de invasão local. O objetivo deste trabalho foi determinar os fatores de risco desses tumores de acordo com as áreas de risco para recidiva na face. Foram revisados os prontuários de pacientes que foram submetidos a exérese primária entre 2013 e 2014 no Hospital de Clínicas de Porto Alegre (HCPA), na face, que tivessem exame anatomopatológico com diagnóstico estabelecido de CBCs. Dos 539 casos analisados, 19 (3,5%) apresentaram recidiva dentro dos primeiros 30 meses. Margens cirúrgicas radiais ou profundas comprometidas apresentaram risco significativamente aumentado (RR 3.0) para recidiva e diminuição do tempo livre de recidiva. Maior atenção às margens de excisão e pelo menos 36 meses, são considerados follow-up adequado para controle desses casos em Hospital-escola e terciário como o HCPA.

Palavras-chave: Carcinoma basocelular; Face; Recidiva; Fatores de risco; Procedimentos cirúrgicos menores