The inclusion of the theme - anal cancer - in this revision, in spite of its relative rarity, it answers, partly, to the purpose of calling attention for the significant increase of that lesion and its narrow relationship with sexually transmissible diseases mainly caused by the human papilloma virus (HPV); its nosologic aspects, epidemiology, etiology, and the multifactorial nature of risk that is associated to the disease, its prevention, and, partly, to reveal the current definition of the treatment.
Anal Cancer; Genital Cancer; Sexually Transmitted Diseases; Radiation Therapy; Chemotherapy