Premalignant lesions: Actinic keratosis can be a precursor to invasive carcinoma. The lesions are flaky white and only slightly elevated. May have surrounding erythema due to inflammation. Actinic keratosis lesions are usually more red in color than seborrheic keratosis . They demonstrate acanthosis and hyperkeratosis with inflammatory cells at the base of the lesion. Back to eyelid