Abstract
Squamous cell carcinomas of the mouth (SCCM) are aggressive neoplasms that develop from the keratinocytes lining the oral mucosa and represent over 90% of tumors that occur in the mouth. Brazil has the highest incidence of SCCM among developing countries, and one of the world's highest occurrence rates. The main prognostic factor for poor survival in SCCM is the occurrence of metastatic d…