Bowen's disease and Hutchinson's melanotic freckle make up the two types of premalignant skin lesions. You're said to suffer from Bowen's disease if you display red scaly patches of skin that have been exposed to the sun, and Hutchinson's melanotic freckle if you have flat lesions in variegated colors like black or brown. In terms of causes, aging and chronic sun exposure brings about this form of skin cancer. On other hand, Hutchinson’s melanotic freckle is said to be present for 5-15 years before becoming malignant.
HOW IS PREMALIGNANT SKIN LESIONS DIAGNOSED?
Hutchinson’s melanotic freckle is generally present in individuals over 40 years of age with the peak periods being the seventh or eighth decade.