Basaloid squamous cell carcinoma of oral cavity: Report of two cases.

Basaloid squamous cell carcinoma (BSCC) is an aggressive, high-grade, variant of squamous cell carcinoma (SCC), which is uncommon in the oral cavity but slightly more common in the oropharynx. We present two cases of BSCC, one arising in the floor of the mouth and the other arising on the lateral border of the tongue. The diagnosis of this subtype of SCC is important owing to its particular behavior, with an aggressive course, a high incidence of local recurrence, regional lymph node metastases and mortality rate.