is leukoplakia cancerous
have been ruled out, a patient is diagnosed with oral leukoplakia. While the long-term history of these. lesions is impossible to predict, it is known that true leukoplakias are considered âpotentially. malignant,â meaning that they have the potential, over time, to develop into oral cancer. Oral leukoplakia occurs in 1-2% of the population and is most common in patients over age 40. It may. affect any part of the mouth.