Early Oral Cancer Diagnosis: Secondary Prevention in the Form of Opportunistic Screening or Organized Screening?

Abstract

Oral cancer is the sixth most common cancer in the world with around 300 000 new cases annually, with a five-year survival rate after diagnosis of 40%.2 In Portugal, there are about 1000 new cases per year and 500 deaths.2 Oral cancer appears more frequently in men (2: 1 ratio male / female) after the fourth decade, although it has been documented worldwide, an increased number of this cancer in younger adults and women. [...]