Abstract
Among the various etiologies of carcinomas have oncogenic viruses such as human papilloma virus (HPV), and subtypes 16, 18, 31 and 33 strains more strongly associated with dysplasia and squamous cell carcinoma. This virus has oncogenic proteins such as E7, having the ability to interfere with the cell cycle by binding specifically to retinoblastoma, which is a tumor suppressor foforilada …