Revista chilena de cirugía
versión On-line ISSN 0718-4026
CARDENAS D, CONSUELO et al. Basosquamous carcinoma: A case report with chronic environmental arsenic exposition. Rev Chil Cir [online]. 2010, vol.62, n.3, pp. 272-275. ISSN 0718-4026. doi: 10.4067/S0718-40262010000300012.
Basosquamous carcinoma is a relatively rare cutaneous tumour that shares some characteristics of both basal cell and squamous cell carcinoma. Currently most dermatologists consider that it represents a subtype of basal cell carcinoma with a more aggressive behaviour. The clinical presentation is non-specific and in general the diagnosis is made after the histopathological studies. The prevalence is higher in male patients, during the seventh decade and it tends to appear on sun exposed areas. Many authors compare its behaviour with squamous cell carcinoma. We present the case of a 44 years old male patient with a history of chronic arsenic exposure that presented a firm tumor in the left inguinal region and the biopsy showed basosquamous carcinoma with lymphatic involvement. This case shows an atypical presentation because of its localization and the appearance 20 years before the mean age reported in the literature. This could be explained by chronic environmental arsenic exposure, a well known risk factor for the development of cutaneous tumours.
Palabras clave : Basosquamous carcinoma; basal cell carcinoma; arsenic.